Multihop compute-and-forward for generalised two-way relay channels
Article
Article Title | Multihop compute-and-forward for generalised two-way relay channels |
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ERA Journal ID | 39729 |
Article Category | Article |
Authors | Wang, Gengkun (Author), Xiang, Wei (Author) and Yuan, Jinhong (Author) |
Journal Title | Transactions on Emerging Telecommunications Technologies |
Journal Citation | 26 (3), pp. 448-460 |
Number of Pages | 13 |
Year | 2015 |
Publisher | John Wiley & Sons |
Place of Publication | United Kingdom |
ISSN | 1124-318X |
1541-8251 | |
2161-3915 | |
Digital Object Identifier (DOI) | https://doi.org/10.1002/ett.2644 |
Web Address (URL) | https://onlinelibrary.wiley.com/doi/10.1002/ett.2644 |
Abstract | The compute-and-forward (CaF) relaying strategy recently proposed by Nazer and Gastpar has been proven to achieve significant improvements in 'computation rate' than conventional relaying strategies in the multiple-access channel. Although there have been some recent efforts on the implementations of CaF, to the best of our knowledge, there has been no published work that analyzes the outage performance of CaF in the multi-hop two-way relay channel (MH-TRC). In this paper, we extend the original CaF strategy to multi-hop CaF (MH-CaF), and investigate the outage performance of the proposed MH-CaF in the generalized MH-TRC. The transmission strategy of MH-CaF for the L-node K-message MH-TRC is generalized. The network throughput of MH-CaF is proven to be significantly better than the non-network coding (Non-NC) scheme for the MH-TRC with a large number of messages. The outage probabilities for both Non-NC and MH-CaF schemes are derived for comparison. Numerical results show that for a five-node MH-TRC, MH-CaF can achieve a better outage performance than Non-NC when the number of messages is less than 12. Furthermore, it is also demonstrated that MH-CaF is always superior to Non-NC in outage performance when the number of nodes of the MH-TRC is relatively large. |
Keywords | Multi-hop compute-and-forward; two-way relay channel; computation rate; outage probability |
ANZSRC Field of Research 2020 | 400604. Network engineering |
460207. Modelling and simulation | |
400608. Wireless communication systems and technologies (incl. microwave and millimetrewave) | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Faculty of Engineering and Surveying |
Department of Electrical, Electronic and Computer Engineering | |
University of New South Wales | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q1y43/multihop-compute-and-forward-for-generalised-two-way-relay-channels
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