November 28, 2014--Reeently, MIIT issued the ＂Opinions On Open Access To Broadband Market （Draft）＂, which regulates that private enterprises should be enc：ouraged to participate in the construction and operation ...November 28, 2014--Reeently, MIIT issued the ＂Opinions On Open Access To Broadband Market （Draft）＂, which regulates that private enterprises should be enc：ouraged to participate in the construction and operation of broadband access network infrastructure; encourage the private enterprises to participate in the relevant investment and carry out cooperation with infrastructure companies anti provide broadband resale services etc. The mainthree telecom operators shall not sign exclusive agreements with private enterprises and dynamic adjustment mechanism of prices should be estahlished.展开更多
The Burst Time Plan(BTP) generation is the key for resource allocation in Broadband Satellite Multimedia(BSM) system.The main purpose of this paper is to minimize the system response time to users' request caused ...The Burst Time Plan(BTP) generation is the key for resource allocation in Broadband Satellite Multimedia(BSM) system.The main purpose of this paper is to minimize the system response time to users' request caused by BTP generation as well as maintain the Quality of Service(QoS) and improve the channel utilization efficiency.Traditionally the BTP is generated periodically in order to simplify the implementation of the resource allocation algorithm.Based on the analysis we find that Periodical BTP Generation(P-BTPG) method cannot guarantee the delay performance,channel utilization efficiency and QoS simultaneously,especially when the capacity requests arrived randomly.The Optimized BTP Generation(O-BTPG) method is given based on the optimal scheduling period and scheduling latency without considering the signaling overhead.Finally,a novel Asynchronous BTP Generation(A-BTPG) method is proposed which is invoked according to users' requests.A BSM system application scenario is simulated.Simulation results show that A-BTPG is a trade-off between the performance and signaling overhead which can improve the system performance insensitive to the traffic pattern.This method can be used in the ATM onboard switching satellite system and further more can be expended to Digital Video Broadcasting-Return Channel Satellite(DVB-RCS) system or IP onboard routing BSM system in the future.展开更多
The planning of wireless communication networks in underdeveloped countries is studied for landline telephone, fixed broadband wireless access and PLMN systems via investigation and discussion of the LDC networks＇ ch...The planning of wireless communication networks in underdeveloped countries is studied for landline telephone, fixed broadband wireless access and PLMN systems via investigation and discussion of the LDC networks＇ characteristic, technology selection, deployment consideration, network configuring, civil work evaluation and investment estimation. An example is embedded all through providing a general展开更多
在宽带多媒体卫星通信系统带宽按需分配(Bandwidth on Demand,BoD)过程中,采用周期性突发时间计划生成(Periodical Burst Time Plan Generation,P-BTPG)方法会导致BoD性能对带宽分配周期和带宽分配时延十分敏感.通过建立BoD时序模型,推...在宽带多媒体卫星通信系统带宽按需分配(Bandwidth on Demand,BoD)过程中,采用周期性突发时间计划生成(Periodical Burst Time Plan Generation,P-BTPG)方法会导致BoD性能对带宽分配周期和带宽分配时延十分敏感.通过建立BoD时序模型,推导最优带宽分配周期和分配时延值,给出一种最优的突发时间计划生成(Optimal Burst TimePlan Generation,O-BTPG)方法.针对该方法导致突发时间计划(Burst Time Plan BTP)信令开销过大的问题,进一步提出一种能够根据带宽需求异步生成突发时间计划(Asynchronous Burst Time Plan Generation,A-BTPG)的方法,推导采用该方法的最优带宽分配长度和最优带宽分配时刻表达式,给出该方法的执行流程;采用两种典型带宽分配算法对不同的BTP生成方法进行性能仿真与分析,仿真结果表明:A-BTPG方法具有较好的通用性,在控制BTP信令开销的前提下能够明显提升系统带宽动态响应能力.展开更多
文摘November 28, 2014--Reeently, MIIT issued the ＂Opinions On Open Access To Broadband Market （Draft）＂, which regulates that private enterprises should be enc：ouraged to participate in the construction and operation of broadband access network infrastructure; encourage the private enterprises to participate in the relevant investment and carry out cooperation with infrastructure companies anti provide broadband resale services etc. The mainthree telecom operators shall not sign exclusive agreements with private enterprises and dynamic adjustment mechanism of prices should be estahlished.
基金Supported by the National Natural Science Foundation ofChina (No. 60972061,60972062,and 61032004)the Na-tional High Technology Research and Development Program of China ("863" Program) (No. 2008AA12A204,2008AA12Z307)+1 种基金Natural Science Foundation of Jiangsu Province (BK2009060)the"Triple Three" High Level Talent Development Plan of Jiangsu Province
文摘The Burst Time Plan(BTP) generation is the key for resource allocation in Broadband Satellite Multimedia(BSM) system.The main purpose of this paper is to minimize the system response time to users' request caused by BTP generation as well as maintain the Quality of Service(QoS) and improve the channel utilization efficiency.Traditionally the BTP is generated periodically in order to simplify the implementation of the resource allocation algorithm.Based on the analysis we find that Periodical BTP Generation(P-BTPG) method cannot guarantee the delay performance,channel utilization efficiency and QoS simultaneously,especially when the capacity requests arrived randomly.The Optimized BTP Generation(O-BTPG) method is given based on the optimal scheduling period and scheduling latency without considering the signaling overhead.Finally,a novel Asynchronous BTP Generation(A-BTPG) method is proposed which is invoked according to users' requests.A BSM system application scenario is simulated.Simulation results show that A-BTPG is a trade-off between the performance and signaling overhead which can improve the system performance insensitive to the traffic pattern.This method can be used in the ATM onboard switching satellite system and further more can be expended to Digital Video Broadcasting-Return Channel Satellite(DVB-RCS) system or IP onboard routing BSM system in the future.
文摘The planning of wireless communication networks in underdeveloped countries is studied for landline telephone, fixed broadband wireless access and PLMN systems via investigation and discussion of the LDC networks＇ characteristic, technology selection, deployment consideration, network configuring, civil work evaluation and investment estimation. An example is embedded all through providing a general
文摘在宽带多媒体卫星通信系统带宽按需分配(Bandwidth on Demand,BoD)过程中,采用周期性突发时间计划生成(Periodical Burst Time Plan Generation,P-BTPG)方法会导致BoD性能对带宽分配周期和带宽分配时延十分敏感.通过建立BoD时序模型,推导最优带宽分配周期和分配时延值,给出一种最优的突发时间计划生成(Optimal Burst TimePlan Generation,O-BTPG)方法.针对该方法导致突发时间计划(Burst Time Plan BTP)信令开销过大的问题,进一步提出一种能够根据带宽需求异步生成突发时间计划(Asynchronous Burst Time Plan Generation,A-BTPG)的方法,推导采用该方法的最优带宽分配长度和最优带宽分配时刻表达式,给出该方法的执行流程;采用两种典型带宽分配算法对不同的BTP生成方法进行性能仿真与分析,仿真结果表明:A-BTPG方法具有较好的通用性,在控制BTP信令开销的前提下能够明显提升系统带宽动态响应能力.
