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PREDICTION-BASED BANDWIDTH ALLOCATION FOR VBR TRAFFIC
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作者 金志刚 舒炎泰 +1 位作者 刘嘉焜 Oliver W W Yang 《Transactions of Tianjin University》 EI CAS 2001年第4期221-225,共5页
A prediction based bandwidth allocation scheme for transporting MPEG VBR traffic is proposed by using the FARIMA (p,d,q) (fractional autoregressive integrated moving average) model.FARIMA (p,d,q) model is capable of ... A prediction based bandwidth allocation scheme for transporting MPEG VBR traffic is proposed by using the FARIMA (p,d,q) (fractional autoregressive integrated moving average) model.FARIMA (p,d,q) model is capable of capturing both the long range and short range dependence in the video traffic.A method is suggested to simplify the FARIMA model fitting procedure and hence to reduce the time of traffic modeling and prediction.The simulation experiments show that this scheme can significantly reduce the requirement of buffer size and the frame loss rate. 展开更多
关键词 bandwidth allocation PREDICTION FARIMA model
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A Stackelberg Differential Game Based Bandwidth Allocation in Satellite Communication Network 被引量:12
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作者 Jingtao Su Shengsong Yang +1 位作者 Haitao Xu Xianwei Zhou 《China Communications》 SCIE CSCD 2018年第8期205-214,共10页
In this paper, a Stackelberg differential game based approach is proposed to solve the bandwidth allocation problems in satellite communication network. All the satellites are divided into two groups, one has high dow... In this paper, a Stackelberg differential game based approach is proposed to solve the bandwidth allocation problems in satellite communication network. All the satellites are divided into two groups, one has high download requirements, and the other one has low download requirements. Each satellites group has its own controller for bandwidth allocation, and can get payments from the satellites for the allocated resources. The relationships between the controllers and satellites are formed as a Stackelberg game. In our model, differential equation is introduced to describe the bandwidth dynamics for the whole satellite communication network. Combine the differential equation and Stackelberg game together, we can formulate the bandwidth allocation problems in satellite communication network as a Stackelber differential game. The solutions to the proposed game is solved based the Bellman dynamic equations. Numerical simulations are given to prove the effeteness and correctness of the proposed approach. 展开更多
关键词 stackelberg equilibrium bandwidth allocation differential game satellite communication networks
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Dynamic Bandwidth Allocation and Rate Coordination for DiffServ Environment 被引量:2
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作者 CHEN Gang WU Guo-xin +1 位作者 ZHANG San-feng YOU Feng-qin 《Wuhan University Journal of Natural Sciences》 EI CAS 2006年第1期248-252,共5页
This paper presents a novel model for dynamic bandwidth allocation and rate coordination based on DiffServ and a bandwidth broker(BB). In this model, assignment of bandwidth was made according to a periodic trace of... This paper presents a novel model for dynamic bandwidth allocation and rate coordination based on DiffServ and a bandwidth broker(BB). In this model, assignment of bandwidth was made according to a periodic trace of network characteristics per application. And adjustment of transfer rate was accomplished through negotiation with applications by a bandwidth agent. This model was evaluated using network simulator 2 (NS-2), and distinct improvements were found in respects of delay and packet loss of overall network and single flow. Finally, the model was suggested to be leveraged to multimedia applications with properties of lower delay and lower packet loss. 展开更多
关键词 QOS bandwidth broker(BB) dynamic bandwidth allocation rate coordination
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User Association and Wireless Backhaul Bandwidth Allocation for 5G Heterogeneous Networks in the Millimeter-Wave Band 被引量:3
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作者 Zhenxiang Su Bo Ai +5 位作者 Yichuan Lin Danping He Ke Guan Ning Wang Guoyu Ma Li Niu 《China Communications》 SCIE CSCD 2018年第4期1-13,共13页
The user association and wireless backhaul bandwidth allocation for a two-tier heterogeneous network (HetNet) in the mil- limeter wave (mmWave) band is proposed in this article. The two-tier HetNet is built up wit... The user association and wireless backhaul bandwidth allocation for a two-tier heterogeneous network (HetNet) in the mil- limeter wave (mmWave) band is proposed in this article. The two-tier HetNet is built up with a macro base station (MBS) and several small cell SBSs, where the MBS is assumed to be equipped with large-scale antenna arrays but the SBSs only have single-antenna capa- bility and they rely on the wireless link to the MBS for backhaul. The sum of logarithmic user rate, which is established according to the result of multi-user Multiple Input Mul- tiple Output (MIMO) downlink employing Zero-Force Beamforming (ZFBF), is chosen as the network utility for the objective func- tion. And a distributed optimization algorithm based on primal and dual decomposition is used to jointly optimize the user association variable xj,z and the wireless backhaul band- width factor α. Simulation results reveal that the distributed optimization algorithm jointly optimizing two variables outperforms the con- ventional SINR-based user association strate- gies. 展开更多
关键词 millimeter wave massive MIMO ZFBF user association bandwidth allocation
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Dynamic bandwidth allocation algorithm for full-band utilization 被引量:1
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作者 Han Guodong Wang Hui Wu Jiangxing 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2006年第1期223-229,共7页
To improve and optimize the bandwidth utilization for multi-service packet transporting system, a kind of Dynamic Full Bandwidth Utilized (DFBU) allocation algorithm allowing a single link to use far beyond its fair... To improve and optimize the bandwidth utilization for multi-service packet transporting system, a kind of Dynamic Full Bandwidth Utilized (DFBU) allocation algorithm allowing a single link to use far beyond its fair share bandwidth is presented. Three important parameters as the bound on max and minimum bandwidth, the maximum packet delay and the minimum bandwidth utilization are discussed and analyzed. Results of experiments show that the DFBU-algorithm is capable of making a single link in the system use all the spare bandwidth (up to full-bandwidth) while the performance of fairness and QoS requirement is still guaranteed. 展开更多
关键词 full-band utilize dynamic allocation algorithm FAIRNESS bandwidth utilization
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Minimizing Age of Information in the Uplink Multi-User Networks via Dynamic Bandwidth Allocation 被引量:2
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作者 Zeyuan Zhu Xinrong Guan +2 位作者 Baoquan Yu Tian Yu Yueming Cai 《China Communications》 SCIE CSCD 2023年第4期287-301,共15页
Improving the information freshness is critical for the monitoring and controlling applications in the cellular Internet of Things(IoT).In this paper,we are interested in optimizing the bandwidth allocation dynamicall... Improving the information freshness is critical for the monitoring and controlling applications in the cellular Internet of Things(IoT).In this paper,we are interested in optimizing the bandwidth allocation dynamically to improve the information freshness of the short packet based uplink status updates,which is characterized by a recently proposed metric,age of information(Ao I).We first design a status update scheme with channel distribution information(CDI).By relaxing the hard bandwidth constraint and introducing a Lagrangian multiplier,we first decouple the multi-MTCD bandwidth allocation problem into a single MTCD Markov decision process(MDP).Under the MDP framework,after variable substitution,we obtain the single-MTCD status update scheme by solving a linear programming problem.Then,we adjust the Lagrangian multiplier to make the obtained scheme satisfy the relaxed bandwidth constraint.Finally,a greedy policy is built on the proposed scheme to adjust the bandwidth allocation in each slot to satisfy the hard bandwidth constraint.In the unknown environment without CDI,we further design a bandwidth allocation scheme which only maximizes the expected sum Ao I drop within each time slot.Simulation results show that in terms of AoI,the proposed schemes outperform the benchmark schemes. 展开更多
关键词 Internet of Things age of information short packet communications bandwidth allocation
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A Joint Power and Bandwidth Allocation Method Based on Deep Reinforcement Learning for V2V Communications in 5G 被引量:1
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作者 Xin Hu Sujie Xu +5 位作者 Libing Wang Yin Wang Zhijun Liu Lexi Xu You Li Weidong Wang 《China Communications》 SCIE CSCD 2021年第7期25-35,共11页
Vehicular communications have recently attracted great interest due to their potential to improve the intelligence of the transportation system.When maintaining the high reliability and low latency in the vehicle-to-v... Vehicular communications have recently attracted great interest due to their potential to improve the intelligence of the transportation system.When maintaining the high reliability and low latency in the vehicle-to-vehicle(V2V)links as well as large capacity in the vehicle-to-infrastructure(V2I)links,it is essential to flexibility allocate the radio resource to satisfy the different requirements in the V2V communication.This paper proposes a new radio resources allocation system for V2V communications based on the proximal strategy optimization method.In this radio resources allocation framework,a vehicle or V2V link that is designed as an agent.And through interacting with the environment,it can learn the optimal policy based on the strategy gradient and make the decision to select the optimal sub-band and the transmitted power level.Because the proposed method can output continuous actions and multi-dimensional actions,it greatly reduces the implementation complexity of large-scale communication scenarios.The simulation results indicate that the allocation method proposed in this paper can meet the latency constraints and the requested capacity of V2V links under the premise of minimizing the interference to vehicle-to-infrastructure communications. 展开更多
关键词 5G V2V communication power allocation bandwidth allocation deep reinforcement learning
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A Bandwidth-Link Resources Cooperative Allocation Strategy of Data Communication in Intelligent Transportation Systems 被引量:5
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作者 Xiaoming Jiang Kangfei Li +2 位作者 Haobin Jiang Na Zhu Xin Tong 《China Communications》 SCIE CSCD 2019年第4期234-249,共16页
The bandwidth resources allocation strategies of the existing Internet of Vehicles(IoV) are mainly base on the communication architecture of the traditional 802.11 x in the wireless local area network(WLAN). The tradi... The bandwidth resources allocation strategies of the existing Internet of Vehicles(IoV) are mainly base on the communication architecture of the traditional 802.11 x in the wireless local area network(WLAN). The traditional communication architecture of IoV will easily cause significant delay and low Packet Delivery Ratio(PDR) for disseminating critical security beacons under the condition of high-speed movement, distance-varying communication, and mixed traffic. This paper proposes a novel bandwidth-link resources cooperative allocation strategy to achieve better communication performance under the road conditions of intelligent transportation systems(ITS). Firstly, in traffic scenarios, based on the characteristic to predict the relative position of the mobile transceivers, a strategy is developed to cooperate on the mobile cellular network and the Dedicated Short-Range Communications(DSRC). Secondly, by adopting the general network simulator NS3, the dedicated mobile channel models that are suitable for the data interaction of ITS, is applied to confirm the feasibility and reliability of the strategy. Finally, by the simulation, comparison, and analysis of some critical performance parame-ters, we conclude that the novel strategy does not only reduce the system delay but also improve the other communication performance indicators, such as the PDR and communication capacity. 展开更多
关键词 IoV bandwidth-link RESOURCES COOPERATIVE allocation strategy system delay PDR
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Adaptive Resource Allocation Algorithm for Internet of Things with Bandwidth Constraint 被引量:1
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作者 李征 刘开华 +1 位作者 苏育挺 马永涛 《Transactions of Tianjin University》 EI CAS 2012年第4期253-258,共6页
In order to improve the transmission accuracy and efficiency of sensing and actuating signals in Internet of Things (loT) and ensure the system stability, an adaptive resource allocation algorithm is proposed, which... In order to improve the transmission accuracy and efficiency of sensing and actuating signals in Internet of Things (loT) and ensure the system stability, an adaptive resource allocation algorithm is proposed, which dynami- cally assigns the network bandwidth and priority among components according to their signals' frequency domain characteristics. A remote sensed and controlled unmanned ground vehicle (UGV) path tracking test-bed was devel- oped and multiple UGV's tracking error signals were measured in the simulation for performance evaluation. Results show that with the same network bandwidth constraints, the proposed algorithm can reduce,, the accumulated and maximum errors of UGV path tracking by over 60% compared with the conventional static algorithm. 展开更多
关键词 Intemet of Things bandwidth constraint adaptive resource allocation sampling rate scheduling
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Review on Dynamic Bandwidth Allocation of GPON and EPON 被引量:2
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作者 Theresal Thangappan Brintha Therese +1 位作者 Adi Suvarnamma Gadda Sai Swapna 《Journal of Electronic Science and Technology》 CAS CSCD 2020年第4期297-307,共11页
The passive optical network(PON)technology has been drastically improved in recent years.In spite of using the optical technology,the utilization of the entire bandwidth is a very challenging task.The main categories ... The passive optical network(PON)technology has been drastically improved in recent years.In spite of using the optical technology,the utilization of the entire bandwidth is a very challenging task.The main categories of PON are the Ethernet passive optical network(EPON)and gigabit passive optical network(GPON).These two networks use the dynamic bandwidth allocation(DBA)algorithm to attain the maximum usage of bandwidth,which is provided in the network dynamically according to the need of the customers with the support of the service level agreement(SLA).This paper will provide a clear review about the DBA algorithm of both technologies as well as the comparison。 展开更多
关键词 Dynamic bandwidth allocation(DBA) Ethernet passive optical network(EPON) gigabit passive optical network(GPON)
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Efficient Bandwidth Allocation and Computation Configuration in Industrial IoT 被引量:1
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作者 HUANG Rui LI Huilin ZHANG Yongmin 《ZTE Communications》 2023年第1期55-63,共9页
With the advancement of the Industrial Internet of Things(IoT),the rapidly growing demand for data collection and processing poses a huge challenge to the design of data transmission and computation resources in the i... With the advancement of the Industrial Internet of Things(IoT),the rapidly growing demand for data collection and processing poses a huge challenge to the design of data transmission and computation resources in the industrial scenario.Taking advantage of improved model accuracy by machine learning algorithms,we investigate the inner relationship of system performance and data transmission and computation resources,and then analyze the impacts of bandwidth allocation and computation resources on the accuracy of the system model in this paper.A joint bandwidth allocation and computation resource configuration scheme is proposed and the Karush-Kuhn-Tucker(KKT)conditions are used to get an optimal bandwidth allocation and computation configuration decision,which can minimize the total computation resource requirement and ensure the system accuracy meets the industrial requirements.Simulation results show that the proposed bandwidth allocation and computation resource configuration scheme can reduce the computing resource usage by 10%when compared to the average allocation strategy. 展开更多
关键词 bandwidth allocation computation resource management industrial IoT system accuracy
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Spectrum Allocation for Cognitive Radio Networks with Non-Deterministic Bandwidth of Spectrum Hole 被引量:1
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作者 Jie Huang Xiaoping Zeng +2 位作者 Xiaoheng Tan Xin Jian Yuan He 《China Communications》 SCIE CSCD 2017年第3期87-96,共10页
The spectrum allocation for cognitive radio networks(CRNs) has received considerable studies under the assumption that the bandwidth of spectrum holes is static. However, in practice, the bandwidth of spectrum holes i... The spectrum allocation for cognitive radio networks(CRNs) has received considerable studies under the assumption that the bandwidth of spectrum holes is static. However, in practice, the bandwidth of spectrum holes is time-varied due to primary user/secondary user(PU/SU) activity and mobility, which result in non-determinacy. This paper studies the spectrum allocation for CRNs with non-deterministic bandwidth of spectrum holes. We present a novel probability density function(PDF) through order statistics as well as its simplified form to describe the statistical properties of spectrum holes, with which a statistical spectrum allocation model based on stochastic multiple knapsack problem(MKP) is formulated for spectrum allocation with non-deterministic bandwidth of spectrum holes. To reduce the computational complexity, we transform this stochastic programming problem into a constant MKP through exploiting the properties of cumulative distribution function(CDF), which can be solved via MTHG algorithm by using auxiliary variables. Simulation results illustrate that the proposed statistical spectrum allocation algorithm can achieve better performance compared with the existing algorithms when the bandwidth of spectrum holes is time-varied. 展开更多
关键词 cognitive radio time-varied spectrum allocation non-deterministic bandwidth of spectrum holes stochastic programming
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An Adaptive Bandwidth Allocation for Energy Efficient Wireless Communication Systems
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作者 Yung-Fa Huang Che-Hao Li +1 位作者 Chuan-Bi Lin Chia-Chi Chang 《Journal of Electronic Science and Technology》 CAS CSCD 2015年第1期27-32,共6页
In this paper, an energy efficient bandwidth allocation scheme is proposed for wireless communication systems. An optimal bandwidth expansion(OBE) scheme is proposed to assign the available system bandwidth for user... In this paper, an energy efficient bandwidth allocation scheme is proposed for wireless communication systems. An optimal bandwidth expansion(OBE) scheme is proposed to assign the available system bandwidth for users. When the system bandwidth does not reach the full load, the remaining bandwidth can be energy-efficiently assigned to the other users. Simulation results show that the energy efficiency of the proposed OBE scheme outperforms the traditional same bandwidth expansion(SBE) scheme. Thus, the proposed OBE can effectively assign the system bandwidth and improve energy efficiency. 展开更多
关键词 bandwidth resource allocation energy efficiency optimal bandwidth expansion same bandwidth expansion
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Transient Analysis of Bandwidth Allocation Strategies in Broadband ISDN
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作者 Yan Puliu Hou Jiechang (College of Electronic Information, Wuhan University, Wuhan 430072,China) 《Wuhan University Journal of Natural Sciences》 CAS 1996年第1期76-80,共5页
We study the transient behavior of B-ISDN bandwidth allocation strategies in tills paper. First, we present the united state transition equations and obtain the steady-state probability distribution vector by the matr... We study the transient behavior of B-ISDN bandwidth allocation strategies in tills paper. First, we present the united state transition equations and obtain the steady-state probability distribution vector by the matrixgeometric solution method. Second, we treat the problem in a uniform way that establishing the coupled differential equations describing the dynamic flow process of B-ISDN channel with the steady state probability as its initial condition and solve it numerically based on the fourth-order Runge-kutta procedure which allows a good balance between computing time and accuracy. Finally, experiment results and discussion are given to illustrate the effectes of the method presented in this paper and show that the idea and analysis way can be extended to all dynamic traffic controlling and management in B-ISDN systems. 展开更多
关键词 B-ISDN transient behavior bandwidth allocation
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Bandwidth allocation algorithm for aggregated tree in optical networks
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作者 汪学舜 CHEN Pei-jie ZHU Guo-sheng 《Journal of Chongqing University》 CAS 2013年第4期170-178,共9页
Wavelength and bandwidth allocation is important for multicast communication in optical networks. In this paper,a new method based on scheduling theory is proposed. The proposed method formulates wavelength bandwidth ... Wavelength and bandwidth allocation is important for multicast communication in optical networks. In this paper,a new method based on scheduling theory is proposed. The proposed method formulates wavelength bandwidth capacity as a large rectangle and these multicast stream bandwidth requirements as small rectangles. It treats the wavelength and bandwidth allocation question as a rectangle packing problem. The proposed algorithm solves the problem by taking quasi-human strategy with Euclidian distance. It is an effective heuristic algorithm to quickly solve multicast stream bandwidth allocation problem in optical networks by theoretic analysis. Further simulation experiments show the bandwidth allocation algorithm can increase network utilization and have a good fairness performance for unicast stream and multicast stream in optical networks. The results indicate the effectiveness of the algorithm. 展开更多
关键词 MULTICAST wavelength and bandwidth allocation rectangle packing quasi-human strategy UTILITY
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A novel algorithm for Ethernet-passive-optical-network dynamic bandwidth allocation based on threshold
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作者 汪学舜 《Journal of Chongqing University》 CAS 2011年第1期45-50,共6页
The Ethemet passive optical network (EPON) is the next generation of broad-band network technique. A crucial issue in EPONs is the sharing of uplink bandwidth among optical network units (ONUs). This article provi... The Ethemet passive optical network (EPON) is the next generation of broad-band network technique. A crucial issue in EPONs is the sharing of uplink bandwidth among optical network units (ONUs). This article provides a novel dynamic bandwidth allocation algorithm, i.e. threshold dynamic bandwidth allocation (TDBA), which is based on adaptive threshold, to increase resource utilization. The algorithm uses ONU data-transmitting rate to adjust optical line terminal (OLT) receiving data threshold from an ONU. Simulation results show that this algorithm can decrease average packet delay and increase network throughput in a l 0G EPON system. 展开更多
关键词 Ethernet passive optical network (EPON) dynamic bandwidth allocation (DBA) optical network unit (ONU) optical line terminal (OLT): oolling cvcle
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DYNAMIC BANDWIDTH ALLOCATION ALGORITHM UTILIZING FULL BAND
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作者 Han Guodong Wen Jianhua Wu Jiangxing 《Journal of Electronics(China)》 2006年第1期48-53,共6页
A kind of Dynamic Full Bandwidth Utilized (DFBU) allocation algorithm is introduced. This algorithm allows a single link to use bandwidth far beyond its fair share bandwidth in a multi-service packet transporting syst... A kind of Dynamic Full Bandwidth Utilized (DFBU) allocation algorithm is introduced. This algorithm allows a single link to use bandwidth far beyond its fair share bandwidth in a multi-service packet transporting system. Three important parameters as the bound on maximum and minimum bandwidth, the maximum packet delay and the minimum band width utilization are discussed and analyzed. Results of experiments show that the DFBU-algorithm is capable of making a single link in the system to use all the spare bandwidth (up to full-bandwidth) while the performance of fairness and QoS requirement is still guaranteed. 展开更多
关键词 Full-band Dynamic allocation algorithm FAIRNESS bandwidth utilization
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Cross-layer resource allocation based on equivalent bandwidth in OFDMA systems
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作者 Su Pan Cheng Li +1 位作者 Sheng Zhang Danwei Chen 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2016年第4期754-762,共9页
A quality of service(QoS) guaranteed cross-layer resource allocation algorithm with physical layer, medium access control(MAC) layer and call admission control(CAC) considered simultaneously is proposed for the ... A quality of service(QoS) guaranteed cross-layer resource allocation algorithm with physical layer, medium access control(MAC) layer and call admission control(CAC) considered simultaneously is proposed for the full IP orthogonal frequency division multiple access(OFDMA) communication system, which can ensure the quality of multimedia services in full IP networks.The algorithm converts the physical layer resources such as subcarriers, transmission power, and the QoS metrics into equivalent bandwidth which can be distributed by the base station in all three layers. By this means, the QoS requirements in terms of bit error rate(BER), transmission delay and dropping probability can be guaranteed by the cross-layer optimal equivalent bandwidth allocation. The numerical results show that the proposed algorithm has higher spectrum efficiency compared to the existing systems. 展开更多
关键词 resource allocation equivalent bandwidth crosslayer optimization orthogonal frequency division multiple access(OFDMA)
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Dynamic Bandwidth Allocation Technique in ATM Networks Based on Fuzzy Neural Networks and Genetic Algorithm
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作者 Zhang Liangjie Li Yanda Wang Pu (Dept of Automation Tsinghua University, Beijing 100084) 《通信学报》 EI CSCD 北大核心 1997年第3期10-17,共8页
DynamicBandwidthAlocationTechniqueinATMNetworksBasedonFuzyNeuralNetworksandGeneticAlgorithm①ZhangLiangjieLiY... DynamicBandwidthAlocationTechniqueinATMNetworksBasedonFuzyNeuralNetworksandGeneticAlgorithm①ZhangLiangjieLiYandaWangPu(Deptof... 展开更多
关键词 模糊神经网 动态带宽分配 异步传输网 基因算法
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Security Enhancement of UAV Swarm Enabled Relaying Systems with Joint Beamforming and Resource Allocation 被引量:6
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作者 Runze Dong Buhong Wang Kunrui Cao 《China Communications》 SCIE CSCD 2021年第9期71-87,共17页
The high mobility of unmanned aerial vehicles(UAVs)could bring abundant degrees of freedom for the design of wireless communication systems,which results in that UAVs,especially UAV swarm,have attracted considerable a... The high mobility of unmanned aerial vehicles(UAVs)could bring abundant degrees of freedom for the design of wireless communication systems,which results in that UAVs,especially UAV swarm,have attracted considerable attention.This paper considers a UAV Swarm enabled relaying communication system,where multiple UAV relays are organized via coordinated multiple points(CoMP)as a UAV swarm to enhance physical layer security of the system in the presence of an eavesdropper.In order to maximize achievable secrecy rate of downlink,we jointly optimize the beamforming vector of the virtual array shaped by the UAV swarm and bandwidth allocation on it for receiving and forwarding,and both amplify-and-forward(AF)and decode-andforward(DF)protocols are considered on the UAV swarm.Due to the non-convexity of the joint optimization problem,we propose an alternating optimization(AO)algorithm to decompose it into two subproblems utilizing block coordinate descent technique,then each subproblem is solved by successive convex optimization method.Simulation results demonstrate that DF has competitive performance advantage compared with AF and the superiority of the proposed secure transmission strategy with optimal beamforming and bandwidth allocation compared with benchmark strategies. 展开更多
关键词 UAV swarm physical layer security BEAMFORMING bandwidth allocation optimization
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