| 一种LTE系统下的基于MBMS的视频流资源分配方案 |
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| 引用本文： | 王振,孙晓梅,张梅,王斌. 一种LTE系统下的基于MBMS的视频流资源分配方案[J]. 南京邮电大学学报(自然科学版), 2013, 0(6): 96-100 |
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| 作者姓名： | 王振 孙晓梅 张梅 王斌 |
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| 作者单位： | [1]南京邮电大学通信与信息工程学院,江苏南京210003 [2]南京邮电大学宽带无线通信与传感网技术教育部重点实验室,江苏南京210003 |
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| 基金项目： | 国家科技重大专项（2011ZX03005-004-03）、江苏省高校自然科学基础研究重大项目（10KJA510037）、南京邮电大学引进人才项目（NY209002）、南京邮电大学宽带无线通信与传感网技术教育部重点实验室开放研究基金（NYKL201108）和江苏高校优势学科建设工程资助项目“信息与通信工程”资助课题 |
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| 摘 要： | 多媒体广播多播业务（MBMS）为点对多点的多媒体传输提供了有效的服务.但MBMS需要上行反馈信道状况,因此其性能受限于最差用户的信道质量.文中提出了一种LTE系统下基于MBMS传输的视频流频域分组调度方案,该方案将视频流分为基层和扩展层,在点对多点的传输方式下,根据信道质量反馈针对不同视频层采用不同的调度方法,在所有用户都得到服务的同时增加了吞吐量.理论和仿真分析表明,与已有的传统调度方案相比,该方案能够提供更高的系统吞吐量和频谱效率.
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| 关 键 词： | LTE MBMS 视频流 资源分配 吞吐量 |
A Resource Allocation Scheme for Video Streaming in MBMS Towards LTE System |
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| WANG Zhen,SUN Xiao-mei,ZHANG Mei,WANG Bin. A Resource Allocation Scheme for Video Streaming in MBMS Towards LTE System[J]. JJournal of Nanjing University of Posts and Telecommunications, 2013, 0(6): 96-100 |
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| Authors: | WANG Zhen SUN Xiao-mei ZHANG Mei WANG Bin |
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| Affiliation: | 1.College of Telecommunications ＆ Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China; 2.College of Telecommunications ＆ Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;Key Lab of Broadband Wireless Communication and Sensor Network Technology, Ministry of Education, Nanjing University of Posts and Telecommunications,Nanjing 210003,China;) |
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| Abstract: | Multimedia Broadcast Multicast Service （MBMS） has proposed to meet the requirements of point-to-multipoint multimedia transmission services.As a broadcast system requires uplink feedback,MBMS＇s performance is limited by UEs in poor connections.This paper proposed a Frequency Domain Packet Scheduling （FDPS） algorithm for the transmission of video streaming in MBMS of LTE networks.The proposed scheme divides the video streaming into two layers which are characterized by two different flows：the basic layer and the enhancement layer.To serve all users and increase the throughput at the same time,the two layers use different scheduling methods base on the channel quality of UEs.Theoretical analysis and simulation show that the suggested scheme improves the system throughput and spectrum efficiency in comparison with the existing approaches. |
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| Keywords: | LTE MBMS video streaming resource allocation throughput |
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