Title
Iterative detection and decoding algorithms for block-fading channels using LDPC codes
Abstract
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 (PIC) 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.
Year
DOI
Venue
2014
10.1109/WCNC.2014.6952171
Wireless Communications and Networking Conference
Keywords
Field
DocType
MIMO communication,Rayleigh channels,error statistics,interference suppression,iterative decoding,mean square error methods,parity check codes,BER,LLR,MIMO IDD scheme,MMSE receivers,PIC schemes,SIC scheme,bit error rate,block-fading channels,block-fading receivers,fast fading Rayleigh channels,iterative detection and decoding scheme,log likelihood ratios,low density parity check codes,minimum mean square error receivers,multiple input multiple output systems,parallel interference cancellation schemes,root-check LDPC codes,successive interference cancellation,Block-Fading,IDD,LDPC,MIMO,Root-Check
Fading,Low-density parity-check code,Computer science,Single antenna interference cancellation,Minimum mean square error,Algorithm,Communication channel,MIMO,Decoding methods,Bit error rate
Conference
ISSN
Citations 
PageRank 
1525-3511
2
0.37
References 
Authors
15
4
Name
Order
Citations
PageRank
Degraf Uchôa1462.98
de Lamare, R.C.265233.42
Cornelius T. Healy320.37
Peng Li48111.75