计算机科学 ›› 2016, Vol. 43 ›› Issue (8): 50-54.doi: 10.11896/j.issn.1002-137X.2016.08.010

• 网络与通信 • 上一篇    下一篇

基于Raptor码的视频多播跨层优化算法

钱晓捷,王超   

  1. 郑州大学信息工程学院 郑州450001,郑州大学信息工程学院 郑州450001
  • 出版日期:2018-12-01 发布日期:2018-12-01
  • 基金资助:
    本文受国家自然科学基金项目(61379079)资助

Cross-layer Optimization Algorithm Based on Raptor Code for Video Multicast

QIAN Xiao-jie and WANG Chao   

  • Online:2018-12-01 Published:2018-12-01

摘要: 在第4代移动通信中,人们更加关注移动宽带网络传输的服务质量(QoS),尤其是多输入多输出(Multiple-Input-Multiple-Output,MIMO)系统下的视频多播方面。提出了一种基于Raptor码的视频多播跨层优化算法,通过Raptor码和其他纠错码的包误差率的对比分析,选择合适的Raptor码率和调解编码方案(MCS)模式进行优化组合,在增大系统吞吐量的同时可以提高信道资源(时隙)利用率。仿真实验表明,该算法在下行链路的吞吐量至少增加了28%,节约了至少18%的信道资源;在SNR=11.5时,BUS序列的客观重建质量(PSNR)的性能增益可达到4dB以上。

关键词: 多输入多输出,视频多播,服务质量,Raptor码,跨层优化算法

Abstract: In the fourth generation mobile communication,people pay much more attention to quality of service(QoS) of mobile broadband network transmission in video multicast based on multiple-input-multiple-output(MIMO) system.Video multicast cross-layer optimization algorithm based on Raptor code was proposed.By analyzing packet error rate between Raptor code and other erasure code,and selecting the appropriate Raptor rate and modulation and coding scheme (MCS) model in order to optimize the combination,the throughput of the system can be increased and the channel resource (time slot) utilization can also be improved.Simulation shows the algorithm has better throughput at least 28%,and saves the channel resources at least 18%.In addition,when SNR is 11.5,PSNR performance gain of BUS sequence can reach more than 4dB.

Key words: MIMO,Video multicast,QoS,Raptor codes,Cross-layer optimization algorithm

[1] Multimedia broadcast/multicast services (mbms);protocols and codecs[S].3GPP TS 26.346,technical specification group services and system aspects,2007
[2] Khalid F,Speidel J.Advances in MIMO Techniques for Mobile Communications—A Survey[J].Network and System Sciences,2010,3(4):213-252
[3] Paper W.Global Mobile Data Traffic Forecast Update[R].Cisco Visual Networking Index,2013
[4] Wang Peng,Wang Xin-mei.Fast encoding research on DPC code [J].Journal of Electronic Science and Technology University,2004,32(9):134-139(in Chinese) 王鹏,王新梅.DPC码的快速编码研究[J].电子科技大学学报,2004,32(9):134-139
[5] Wu Ye-qing,Hu Fei,Zhu Ying-ying,et al.Cross-LayerForward Error Correction Scheme UsingRaptorand RCPC Codes for Prioritized Video Transmission Over Wireless Channels[J].IEEE Transactions onCircuits and Systems for Video Technology,2014,4(6):1047-1060
[6] Air Interface for Fixed and Mobile Broadband Wireless Access Systems[S].IEEE Standard for Local and metropolitan area networks.IEEE Std,2013
[7] Esmailpour A,Nasser N,Dynamic.QoS-Based Bandwidth Allocation Framework for Broadband Wireless Networks[J].IEEE Transactions on Vehicular Technology,2011,6(7):2690-2700
[8] Sgardoni V,Bull D,Nix A.ARQ-aware scheduling and link adaptation for video transmission over mobile broadband networks[J].IEEE Transactions on Mobile Computing,2013,4(2):401-415
[9] Martikainen H,Sayenko A,Alanen O,et al.Optimal MAC PDU size inIEEE802.16[C]∥4th International Telecommunication Networking Workshop on QoS in Multiservice IP Networks(IT-NEWS 2008).2008:66-71
[10] Mobile WiMAX—part I:a technical overview and performance evaluation[S].2006
[11] Spatial channel model for Multiple Input Multiple Output (MIMO) simulations (Release 6)[S].3GPP TR 25.996 V6.1.0.2009
[12] Halls D,Nix A,Beach M.System level evaluation of UL and DL interference in OFDMA mobile broadband networks[C]∥IEEE Wireless Communications and Networking Conference(WCNC).2014:1271-1276
[13] Luby M,Gasiba T,Stockhammer T,et al.Reliable multimedia download delivery in cellular broadcast networks[J].IEEE Trans,Broadcast,2007,53(1):235-246
[14] Munaretto D,Jurca D,Widmer J.A fast rate-adaptation algorithm for robust wireless scalable streaming applications[C]∥IEEE International Conference on Wireless and Mobile Computing,Networking and Communications(WIMOB 2009).2009:246-251
[15] Thomos N,Frossard P.Collaborative videostreaming with Raptor network coding[C]∥IEEE International Conference on Multimedia and Expo.2008:497-500

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