Generalized Compute-and-Forward Schemes for Multi-Hop Two-Way Relay Channels

被引：0
作者：
Wang, Gengkun [1 ]
Xiang, Wei [1 ]
Wang, Yafeng [2 ]
机构：
[1] Univ Southern Queensland, Fac Engn & Surveying, Toowoomba, Qld 4350, Australia
[2] Beijing Univ Posts & Telecommun, Wireless Theor & Technol Lab WT &T, Beijing, Peoples R China
来源：
2013 IEEE 78TH VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL) | 2013年
关键词：
Compute-and-forward; multi-hop two-way relay channel; outage probability;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 (NonNC) 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) MHCPF 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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页数：5
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