Generalized compute-and-forward schemes for multi-hop two-way relay channels

Wang, Gengkun, Xiang, Wei, and Wang, Yafeng (2013) Generalized compute-and-forward schemes for multi-hop two-way relay channels. In: Proceedings of the 2013 IEEE 78th Vehicular Technology Conference. pp. 1-5. From: 2013 IEEE 78th Vehicular Technology Conference, 2-5 September 2013, Las Vegas, NV, USA.

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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.

Item ID: 49320
Item Type: Conference Item (Research - E1)
ISBN: 978-1-4673-6187-3
Keywords: compute-and-forward, multi-hop two-way relay channel, outage probability
Date Deposited: 13 Jul 2017 04:11
FoR Codes: 10 TECHNOLOGY > 1005 Communications Technologies > 100510 Wireless Communications @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890105 Satellite Communication Networks and Services @ 100%
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