Title :
Performance Analysis of Unequal Error Protection Distributed Network Coding Based on Fountain Codes
Author :
Jing Yue ; Zihuai Lin ; Baoming Bai ; Vucetic, Branka
Author_Institution :
State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´an, China
Abstract :
In this paper, we propose an unequal error protection (UEP) distributed network coding (DNC) scheme based on fountain codes to provide arbitrary error protection (i.e., infinite protection levels) to all the source nodes in wireless relay networks (WRNs). We derive the upper and lower bit error rate (BER) bounds for the proposed UEP DNC scheme with maximum-likelihood (ML) decoding over Rayleigh fading channels. Numerical results show that the derived analytical bounds are tight and our proposed UEP DNC scheme based on fountain codes has a strong UEP property.
Keywords :
Rayleigh channels; error statistics; maximum likelihood decoding; network coding; relay networks (telecommunication); ML decoding; Rayleigh fading channels; UEP DNC scheme; UEP property; WRN; arbitrary error protection; fountain codes; infinite protection level; lower-BER bound; maximum-likelihood decoding; source nodes; unequal error protection distributed network coding; upper-bit error rate bound; wireless relay networks; Bit error rate; Error correction codes; Fading; Network coding; Relays; Reliability; Wireless communication; Distributed network coding; Rayleigh fading channels; fountain codes; upper and lower bit error rate bounds; wireless relay networks;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/WCL.2014.030514.140036
