期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

基于非正则低密度校验码的图像传输 被引量：1

Irregular LDPC Codes Based Image Transmission
下载PDF
导出
摘要 对Ma的图像传输中正则低密度校验(LDPC)码的应用研究进行了拓展,考虑了移动通信室内测试环境下非正则LDPC码在图像传输中的应用。本文不仅研究了相同码长下非正则LDPC码和正则LDPC码的性能比较,还分析了不同码长、不同girth(Tanner图中的最短长度环)分布下LDPC码的性能。仿真结果表明,相同码长的情况下,非正则LDPC码用于图像传输系统带来了更好的性能提高,纠错性能要明显优于正则LDPC码,在误比特率为1×10-3时,非正则码与正则码相比获得了1.6 dB的性能增益;而LDPC码的码长越长,码的平均girth越大,系统的性能则会得到进一步的改善。 Mars application of regular low density parity check（LDPC） codes in image transmission is extended. The application of irregular LDPC codes in image transmission in indoor mobile communication environment is investigated. Furthermore, this paper compares the performances between irregular LDPC and regular codes with the same code length, and analyzes the performance of LDPC codes with different code lengths and different girth distributions. Simulation results indicate that the irregular LDPC codes in image transmission can improve the quality of image than application of regular one. The more code length and the average girth is, thus the performance of the transmission system is improved.
作者 徐华 徐澄圻
机构地区 南京邮电大学通信与工程学院
出处 《数据采集与处理》 CSCD 北大核心 2007年第2期155-160,共6页 Journal of Data Acquisition and Processing
基金 江苏省高校自然科学基础研究基金(06KJD510205)资助项目 江苏省"青蓝工程"优秀青年骨干教师计划(2006)资助项目
关键词 纠错编码 低密度校验码 图像传输 最短长度环 error-correcting codes low density parity check （LDPC） codes image transmission shortest cycles
分类号 TN919.8 [电子电信—通信与信息系统]
  • 相关文献

参考文献8

  • 1Gallager R G.Low-density parity-check codes[J].IRE Transactions on Information Theory,1962,8(1):21-28.
  • 2Tanner R M.A recursive approach to low coplexity codes[J].IEEE Transactions on Information Theory,1981,27(5):533-547.
  • 3马丕明,袁东风,杨秀梅,张海刚.低密度校验码及其在图像传输中的应用[J].电子与信息学报,2004,26(8):1269-1275. 被引量：5
  • 4Richardson T J,Urbanke R L.Efficient encoding of low-density parity-check codes[J].IEEE Transactions on Information Theory,2001,47(2):638-656.
  • 5Richardson T J,Urbanke R L.The capacity of lowdensity parity-check codes under message-passing decoding[J].IEEE Transactions on Information Theory,2001,47(2):599-618.
  • 6Richardson T J,Shokrollahi M A,Urbanke R L.Design of capacity-approaching irregular low density parity-check codes[J].IEEE Transactions on Infor mation Theory,2001,47(2):619-637.
  • 7Hou J L,Siegel P H,Nlilstein L B.Perforance analysis and optimization of low density parity check codes on Rayleigh channels[J].IEEE Journal on Selected Area in Communication,2001,19 (5):924-934.
  • 8Mao Y Y,Banihashemi A H.A heuristic search for good low-density parity-check codes at short block lengths[C]//IEEE International Conference on Communication.Helsinki,Finland:[s.n.],2001:41-44.

二级参考文献8

  • 1[1]Gallager G R.Low-density parity-check codes.IRE Trans.on Info.Theory,1962,8(1):21-28.
  • 2[2]McEliece R J,MacKay D J C,Cheng Jung-Fu.Turbo decoding as an instance of Pearl's belief propagation algorithm.IEEE J.on Selected Areas in Communications,1998,16(2):140-152.
  • 3[3]Kschischang F R,Frey B J,Loeliger H.Factor graphs and the sum-product algorithm.IEEE Trans.on Info.Theory,2001,47(2):498-519.
  • 4[4]MacKay D J C.Good error-correcting codes based on very sparse matrices.IEEE Trans.on Info.Theory,1999,45(3):399-431.
  • 5[5]Luby M G,Mitzenmacher M,Shokrollahi M A,Spielman D A.Efficient erasure correcting codes.IEEE Trans.on Info.Theory,2001,47(2):569-584.
  • 6[6]Richardson T J,Urbanke R L.The capacity of low-density parity-check codes under messagepassing decoding.IEEE Trans.on Info.Theory,2001,47(2):599-618.
  • 7[7]Hou Ji-lei,Siegel P H,Milstein L B.Performance analysis and code optimization of low density parity-check codes on Rayleigh fading channels.IEEE J.on Selected Areas in Communications,2001,19(5),924-934.
  • 8[8]Lu Ben,Wang Xiao-dong,Narayanan K R.LDPC-based space-time coded OFDM systems over correlated fading channels:performance analysis and receiver design.IEEE Trans.on Communications,2002,50(1):74-88.

共引文献4

同被引文献9

  • 1Sendonaris A, ErkiP Aa E, User B Cooperationdiversity. Patti: system description[J] IEEE Trans Comm, 2003,51(11) : 1927-1938.
  • 2Cover T M,Gamal A A. Capacity theorems for the elay channel[J] IEEE Transactions on Information Theory, 1979,25 (6) :572-584.
  • 3Li C, Yue G, Wang X. LDPC code design for half- duplex cooperative relay[J]. IEEE Trans on Wire- less Communication, 2008, 7(11) :4558 4567.
  • 4Yang Fengfan, Chen Jingwen, Zong Peng, et al. Joint iterative decoding for pragmatic irregular LD- PC coded multi-relay cooperations[J]. International Journal of Electronics, 2011,98 (10) : 1383-1397.
  • 5Hunter Todd E. Coded cooperation; a new frame- work for user cooperation in wireless systems[D]. Texas, USA ; University of Texas, 2004.
  • 6Duyck D, Capirone D. Analysis and construction of full diversity joint network-LDPC codes for coopera- tive communicati0ns[J]. Eurasip Journal on Wire- less Communications and Networking, 2010 ( 1 ) ; 1472 1687.
  • 7Shraga I B. On the discrete memoryless partially co- operative relay broadcast channel and the broadcast channel with cooperating decoders [J]. IEEE Trans- actions on Information Theory, 2009,55 (5) : 2161- 2182.
  • 8Zhao Xibin. System outage probability analysis in up- link multi-hop cellular systems over composite Chan- nels[J]. Eurasip Journal on Wireless Communica- tions and Networking, 2011 ( 1 ) : 35-44.
  • 9Hunter T E, Sanayei S, Nosratinia A. Outage analy- sis of coded cooperation [J] IEEE Trans Informa tion Theory (S0018 9448), 2006,52(2) : 375-391.

引证文献1

二级引证文献3

数据采集与处理
2007年 第2期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部