Title :
Equiphase Precoder Design for Cooperative Communication with Complex Field Network Coding
Author :
Hao Lu ; Peilin Hong ; Kaiping Xue ; Xiaolong Li
Author_Institution :
EEIS Dept., USTC, Hefei, China
Abstract :
Complex field network coding (CFNC) can be employed to achieve ideal throughput as high as 1/2 symbol per source per time slot (sym/S/TS) in relay-based cooperative communications. In this paper, equiphase precoder (EP) scheme for CFNC-based system (EP-CFNC) is proposed to achieve better symbol error probability (SEP) performance. The distribution of transmitted symbol´s constellation is carefully designed against noise. The theoretical analysis provides a method to estimate the SEP and verifies the coding gain obtained by equiphase precoder. Moreover, simulation results, in both additive complex White Gaussian noise (AWGN) channels and Rayleigh fading channels, show that SEP can be substantially reduced via the proposed EP-CFNC algorithm.
Keywords :
AWGN channels; Rayleigh channels; channel coding; cooperative communication; error statistics; network coding; precoding; relay networks (telecommunication); 1/2 symbol per source per time slot; AWGN channel; CFNC-based system; EP-CFNC algorithm; Rayleigh fading channel; SEP estimation; additive complex White Gaussian noise; coding gain; complex field network coding; equiphase precoder design; relay-based cooperative communication; sym/S/TS; symbol error probability; transmitted symbol constellation distribution; AWGN channels; Encoding; Fading; Modulation; Network coding; Relays; Wireless communication;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2013 IEEE 78th
Conference_Location :
Las Vegas, NV
DOI :
10.1109/VTCFall.2013.6692192