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

Wang, Gengkun and Xiang, Wei and Wang, Yafeng (2013) Generalized compute-and-forward schemes for multi-hop two-way relay channels. In: IEEE 78th Vehicular Technology Conference (VTC 2013 Fall): Connecting the Mobile World, 2-5 Sep 2013, Las Vegas, NV. United States.

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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 #36;I#36;-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.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to published version due to publisher copyright policy.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 19 Nov 2014 05:32
Last Modified: 15 May 2017 23:25
Uncontrolled Keywords: compute-and-forward; multi-hop two-way relay channel; outage probability
Fields of Research : 10 Technology > 1005 Communications Technologies > 100503 Computer Communications Networks
10 Technology > 1005 Communications Technologies > 100510 Wireless Communications
09 Engineering > 0906 Electrical and Electronic Engineering > 090699 Electrical and Electronic Engineering not elsewhere classified
Socio-Economic Objective: B Economic Development > 89 Information and Communication Services > 8901 Communication Networks and Services > 890199 Communication Networks and Services not elsewhere classified
Identification Number or DOI: 10.1109/VTCFall.2013.6692212
URI: http://eprints.usq.edu.au/id/eprint/26314

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