Title
Unequal error protection using LDPC codes by partial superposition transmission
Abstract
In this paper, we present a new approach for unequal error protection (UEP) using low-density parity-check (LDPC) codes by partial superposition transmission (referred to as UEP-by-PST for convenience). The information sequence with two levels of importance is distinguished as two parts, the more important data (MID) and the less important data (LID), both of which are coded with binary LDPC codes. The codeword that corresponds to the MID is superimposed on the codeword that corresponds to the LID. We also investigate the UEP from an information-theoretic point of view. Simulation results show that, over both AWGN channels and uncorrelated Rayleigh fading channels, the UEP-by-PST provides higher coding gain for the MID compared with the traditional equal error protection (EEP) approach, but with negligible performance loss for the LID. © 2013 IEEE.
Year
DOI
Venue
2013
10.1109/HMWC.2013.6710318
HMWC
Field
DocType
Volume
Coding gain,Superposition principle,Low-density parity-check code,Communication channel,Algorithm,Electronic engineering,Code word,Uncorrelated rayleigh fading channels,Additive white Gaussian noise,Mathematics,Binary number
Conference
null
Issue
ISSN
ISBN
null
null
978-1-4673-6379-2
Citations 
PageRank 
References 
0
0.34
9
Authors
3
Name
Order
Citations
PageRank
Kechao Huang1605.65
Chulong Liang210312.50
Xiao Ma348764.77