Iterative Detection and Decoding Algorithms For Block-Fading Channels Using LDPC Codes

被引：0
|
作者：
Uchoa, Andre G. D. [1 ]
de Lamare, Rodrigo C. [1 ]
Healy, Cornelius [2 ]
Li, Peng [1 ,3 ]
机构：
[1] Univ York, Commun Res Grp, York YO10 5DD, N Yorkshire, England
[2] CETU, PUC RIO, Rio De Janeiro, Brazil
[3] Tech Univ Ilmenau, Commun Res Grp, DE, Ilmenau, Germany
来源：
2014 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC) | 2014年
关键词：
LDPC; Root-Check; MIMO; IDD; Block-Fading; SUCCESSIVE INTERFERENCE CANCELLATION; MIMO; SYSTEMS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose an Iterative Detection and Decoding (IDD) scheme with Low Density Parity Check (LDPC) codes for Multiple Input Multiple Output (MIMO) systems in block-fading receivers and fast fading Rayleigh channels. An IDD receiver with soft information processing that exploits the code structure and the behaviour of the log likelihood ratios (LLR)'s is developed. Minimum Mean Square Error (MMSE) receivers with Successive Interference Cancellation (SIC) and with Parallel Interference Cancellation (PLC) schemes are considered. The soft a posteriori output of the decoder in a block-fading channel with Root-Check LDPC codes has allowed us to create a new strategy to improve the Bit Error Rate (BER) of a MIMO IDD scheme. The proposed strategy has resulted in up to 3dB of gain in terms of BER for block-fading channels and up to 1dB in fast fading channels.
引用
收藏
页码：803 / 808
页数：6
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