期刊文献+
共找到6篇文章
< 1 >
每页显示 20 50 100
三网融合背景下广电网络技术问题分析与应对探讨 被引量:2
1
作者 李春希 贺鱼鱼 《传媒论坛》 2019年第14期113-113,共1页
随着我国计算机技术与网络技术的快速发展,在三大网络融合的背景下,要求广电网络充分利用当前的业务技术资源满足用户的使用需求。本文结合了广电网络技术的发展现状,提出通过运用新技术以及对广电网络进行新的建设,来实现广电网络技术... 随着我国计算机技术与网络技术的快速发展,在三大网络融合的背景下,要求广电网络充分利用当前的业务技术资源满足用户的使用需求。本文结合了广电网络技术的发展现状,提出通过运用新技术以及对广电网络进行新的建设,来实现广电网络技术的发展与创新。 展开更多
关键词 三网融合 广电网络技术 以太无光源网络
下载PDF
Modeling for Ethernet passive optical network receiver
2
作者 张亮 王志功 +1 位作者 胡庆生 邓伟杰 《Journal of Southeast University(English Edition)》 EI CAS 2009年第4期439-444,共6页
A behavior model for the receiver of the Ethernet passive optical network(EPON) is presented. The model consists of a fiber, a photodetector, a transimpedance amplifier (TIA) followed by a limiting amplifier and a... A behavior model for the receiver of the Ethernet passive optical network(EPON) is presented. The model consists of a fiber, a photodetector, a transimpedance amplifier (TIA) followed by a limiting amplifier and a clock and data recovery' circuit (CDR). Each sub-model is constructed based on the architecture of a circuit. The noise and jitter in each block such as shot noise, thermal noise, deterministic and random jitter are also considered. The performance of the whole receiver can be evaluated by the simulation of the behavior model, which is faster than the ordinary circuit model and more accurate than the analytical model. The whole model is implemented with C ++ and simulated in Microsoft Visual C ++ 6. 0. Using the Monte Carlo method, the EPON receiver is simulated. The simulation results show a good agreement with experimental ones. 展开更多
关键词 Ethel'net passive optical network(EPON) behavior model noise JITTER clock and data recovery circuit(CDR)
下载PDF
Echo-state-network classification based multi-services awareness in high-speed optical passive networks
3
作者 白晖峰 Ye Quanyi 《High Technology Letters》 EI CAS 2017年第1期48-53,共6页
With the challenge of great growing of services diversity,service-oriented supporting ability is required by current high-speed passive optical network( PON). Aimed at enhancing the quality of service( Qo S) brought b... With the challenge of great growing of services diversity,service-oriented supporting ability is required by current high-speed passive optical network( PON). Aimed at enhancing the quality of service( Qo S) brought by diversified-services,this study proposes an echo state network( ESN)based multi-service awareness mechanism in 10-Gigabite ethernet passive optical network( 10GEPON). In the proposed approach,distributed architecture is adopted to realize this ESN based multi-service awareness. According to the network architecture of 10G-EPON,where a main ESN is running in OLT and a number of ESN agents works in ONUs. The main-ESN plays the main function of service-awareness from the total view of various kinds of services in 10G-EPON system,by full ESN training. Then,the reservoir information of well-trained ESN in OLT will be broadcasted to all ONUs and those ESN agents working in ONUs are allowed to conduct independent service-awareness function. Thus,resources allocation and transport policy are both determined only in ONUs. Simulation results show that the proposed mechanism is able to better support the ability of multiple services. 展开更多
关键词 10-Gigabite ethernet passive optical network (10G-EPON) multi-services aware-ness echo state network (ESN) reservoir computation
下载PDF
Design and implementation of ethernet passive electronic network over coax
4
作者 黄晶 Liu Deming 《High Technology Letters》 EI CAS 2013年第3期290-294,共5页
To increase the limit of ethernet over coax (EoC) technology in the bidirectional reform of the hybrid fiber coaxial (HFC) network, an ethernet passive electronic network (EPEN) system based on Coax is proposed ... To increase the limit of ethernet over coax (EoC) technology in the bidirectional reform of the hybrid fiber coaxial (HFC) network, an ethernet passive electronic network (EPEN) system based on Coax is proposed and experimentally demonstrated in this paper. The proposed EPEN exploits the existing capabilities of the MAC layer in the ethernet passive optical network (EPON) for reduction of cost of the HFC network. As the MPCP (multi-point control protocol) is introduced in the EPEN, bandwidth control and higher efficiency can be achieved. The experimental results exhibit the throughput of system up to 100Mbps, which meet the requirements of HFC network. To improve the performance of EPEN, frequency division multiplexing (FDM) can be used for further increase of the throughput and more hardware processing modules in the future. can be implemented to enhance the capacity 展开更多
关键词 ethernet over coax EoC ethernet passive electronic network EPEN) ethernetpassive optical network (EPON) multi-point control protocol (MPCP)
下载PDF
以波长转换技术为基础的一种低成本WDM-EPON方案探讨
5
作者 祝思杰 《通讯世界》 2017年第19期278-279,共2页
目前我们国家上海交通大学的相关专家根据专业理论知识提出了以波长转换技术为基础的低成本WDM-EPON方案,这种技术可以对对EPON中的光网络单元进行合理使用和分配,而且还能够对网路的使用性能进行提升,使得光波的转换效率变得更高,这在... 目前我们国家上海交通大学的相关专家根据专业理论知识提出了以波长转换技术为基础的低成本WDM-EPON方案,这种技术可以对对EPON中的光网络单元进行合理使用和分配,而且还能够对网路的使用性能进行提升,使得光波的转换效率变得更高,这在很大程度上降低了网络使用成本。与此同时,这种新型的WDM-EPON技术也是经过试验验证的,可行性和可操作性相对比较强。 展开更多
关键词 波分复用以太无光源网络 注入锁模 FP激光器 波长转换节点
下载PDF
Dynamic Wavelength and Bandwidth Allocation Using Adaptive Linear Prediction in WDM/TDM Ethernet Passive Optical Networks 被引量:1
6
作者 陆奕奕 郭勇 何晨 《Journal of Shanghai Jiaotong university(Science)》 EI 2009年第2期173-178,共6页
Hybrid wavelength-division-multiplexing(WDM)/time-division-multiplexing(TDM) ethernet passive optical networks(EPONs) can achieve low per-subscriber cost and scalability to increase the number of subscribers. This pap... Hybrid wavelength-division-multiplexing(WDM)/time-division-multiplexing(TDM) ethernet passive optical networks(EPONs) can achieve low per-subscriber cost and scalability to increase the number of subscribers. This paper discusses dynamic wavelength and bandwidth allocation(DWBA) algorithm in hybrid WDM/TDM EPONs.Based on the correlation structure of the variable bit rate(VBR) video traffic,we propose a quality-ofservice (QoS) supported DWBA using adaptive linear traffic prediction.Wavelength and timeslot are allocated dynamically by optical line terminal(OLT) to all optical network units(ONUs) based on the bandwidth requests and the guaranteed service level agreements(SLA) of all ONUs.Mean square error of the predicted average arriving rate of compound video traffic during waiting period is minimized through Wiener-Hopf equation.Simulation results show that the DWBA-adaptive-linear-prediction(DWBA-ALP) algorithm can significantly improve the QoS performances in terms of low delay and high bandwidth utilization. 展开更多
关键词 ethernet passive optical network (EPON) dynamic bandwidth allocation (DBA) dynamic wavelength and bandwidth allocation (DWBA) variable bit rate (VBR) adaptive linear prediction grouting
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部