Cooperative communication scheme with 8PSK modulation constellations using LDPC codes

被引：0
|
作者：
Li L. [1 ]
Yuan C. [1 ]
Tian X. [1 ]
机构：
[1] School of Info. and Comm. Eng., Beijing Univ. of Posts and Telecomm.
来源：
Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University | 2011年 / 38卷 / 04期
关键词：
8PSK modulation; Coded cooperation; Diversity; HARQ; LDPC;
D O I：
10.3969/j.issn.1001-2400.2011.04.026
中图分类号：
学科分类号：
摘要：
A new coded cooperation scheme with 8PSK modulation using LDPC codes is proposed for high spectral efficiency. Two users in the cooperative process transmit the data using 8PSK modulation over two frames. The transmitted information is stored if it is not decoded correctly by the cooperative partner over the first frame based on HARQ, and then the stored information and the next transmitted information are together decoded by the cooperative partner until the transmitted information over the first frame is decoded successfully, which improves the accuracy of decode due to adding parity information. Then the parity information of his cooperation partner is transmitted over the second frame for diversity. Analysis and simulation results show that the proposed method outperforms the no coded cooperation method and conventional coded cooperation method by benefit of 5dB and 3dB in the Raleigh block channel when the interuser channel has an SNR of 0dB and its BER is 10-3.
引用
收藏
页码：143 / 147+180
相关论文
共 7 条
  • [1] Nosratinia A., Hunter T.E., Hedayat A., Cooperative Communication in Wireless Networks, IEEE Communications Magazine, 42, 10, pp. 74-80, (2004)
  • [2] Hunter T.E., Nosratinia A., Diversity Through Coded Cooperation, IEEE Trans on Wireless Communications, 5, 2, pp. 283-289, (2006)
  • [3] Li C.X., Yue G., Wang X.D., Et al., LDPC Code Design for Half-duplex Cooperative Relay, IEEE Trans on Wireless Communications, 7, 11, pp. 4558-4567, (2008)
  • [4] Lei W., Xie X., Li G., Code Cooperation by Using LDPC Code and Space-time Code, Jounural of the University of Electronic Science and Technology of China, 38, 1, pp. 21-24, (2009)
  • [5] Zhao D., Li D., Coded Cooperation Scheme Using LDPC Scheme, 2009 Global Mobile Congress, GMC 2009, (2009)
  • [6] Gong F., Han C., Wang Y., Et al., Design and Analysis of a CC Scheme with High Order Constellations over Slow Fading Rayleigh Channels, Journal of Xidian University, 35, 4, pp. 555-569, (2008)
  • [7] Zummon S.A., Performance Analysis for Coded Cooperation Diversity in Wireless Networks, Wireless Communications and Mobile Computing, 7, 4, pp. 473-491, (2006)
1