DocumentCode :
659933
Title :
Generalized Compute-and-Forward Schemes for Multi-Hop Two-Way Relay Channels
Author :
Gengkun Wang ; Wei Xiang ; Yafeng Wang
Author_Institution :
Fac. of Eng. & Surveying, Univ. of Southern Queensland, Toowoomba, QLD, Australia
fYear :
2013
fDate :
2-5 Sept. 2013
Firstpage :
1
Lastpage :
5
Abstract :
Wireless network coding for multi-hop two-way relay channels (MH-TRC) has been proven to achieve a significantly improved network throughput than non- network coding (Non-NC) schemes. Our previous work showed that the multi-hop compute-and-forward (MH- CPF) scheme for the MH-TRC with fixed two transmission time intervals was unable to outperform Non-NC in the MH-TRC with an arbitrary number of nodes. In view of this fact, we propose an I-time- interval (I-TI) MH-CPF scheme (I represents the number of transmission time intervals) for the MH- TRC with arbitrary numbers of nodes and messages. By converting the transmission pattern to a corresponding characteristic matrix, the outage probability of the I-TI MH-CPF scheme is derived. We investigate the relationships between the numbers of nodes, messages and TIs with the outage probability. It is proven that L-1-TI MH-CPF can outperform 2-TI MH-CPF when the number of messages is large, while the MH-CPF scheme with a larger number of TIs has better outage performance than 2-TI MH-CPF in the MH-TRC with a small number of nodes.
Keywords :
network coding; relay networks (telecommunication); wireless channels; characteristic matrix; compute and forward communication; multihop relay channel; outage probability; transmission pattern; transmission time interval; two way relay channel; wireless network coding; Educational institutions; Encoding; Numerical models; Probability; Relays; Throughput; Vectors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2013 IEEE 78th
Conference_Location :
Las Vegas, NV
ISSN :
1090-3038
Type :
conf
DOI :
10.1109/VTCFall.2013.6692212
Filename :
6692212
Link To Document :
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