Title :
Joint Network-Channel Coding in Distributed Antenna System
Author :
Liu, Jiafeng ; Qin, Tuanfa ; Chang, Kan
Author_Institution :
Sch. of Comput. & Electron. Inf., Guangxi Univ., Nanning, China
Abstract :
In order to reduce high bit error rate (BER) over wireless multi-access channel with low signal to noise ratio (SNR), a joint network-channel coding algorithm for wireless relay communications is proposed. In our scheme, low density parity check (LDPC) is applied as channel code to work together with network coding in the relay node. At the destination nodes, joint network-channel decoding is applied, in which the channel message with higher SNR is chosen as the received information. Experimental results show that the network model proposed is able to support network coding well with low System BER. Compared with the traditional Distributed Antenna System (DAS) and the system without relay antenna, the new scheme decreases system BER by 47% and 34% on average.
Keywords :
antennas; channel coding; error statistics; multi-access systems; network coding; parity check codes; wireless channels; bit error rate; distributed antenna system; joint network-channel coding algorithm; low density parity check; signal to noise ratio; wireless multiaccess channel; wireless relay communication; Bit error rate; Encoding; Joints; Network coding; Parity check codes; Relays; Signal to noise ratio;
Conference_Titel :
Network Coding (NetCod), 2011 International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-61284-138-0
DOI :
10.1109/ISNETCOD.2011.5978911
