Please use this identifier to cite or link to this item: https://doi.org/10.4108/ICST.WIOPT2009.6342
Title: Transmission schedule optimization for half-duplex multiple-relay networks
Authors: Wang, W.
Ong, L.
Motani, M. 
Keywords: Half-duplex
Multiple relay channel
Optimization
Issue Date: 2009
Source: Wang, W.,Ong, L.,Motani, M. (2009). Transmission schedule optimization for half-duplex multiple-relay networks. Final Proceedings of the 2009 7th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, WiOpt 2009 : -. ScholarBank@NUS Repository. https://doi.org/10.4108/ICST.WIOPT2009.6342
Abstract: Half duplex devices are widely used in today's wireless networks. These devices can only send or receive, but not do both at the same time. In this paper, we use cooperative decode-forward relay strategies to increase the throughput of half-duplex wireless networks. Due to the half duplex constraint, relays need to carefully choose their transmission states in order to maximize the throughput. We show that the transmission schedule optimization can be formulated as a linear programming problem. Although the number of possible states grows exponentially as the number of relays increases, only a small subset of these states needs to be used in the optimal transmission schedule. This observation allows us to use heuristic algorithms to solve for near-optimal schedule in large networks. Our numerical results show that the decode-forward strategy can provide nearly 3 times more throughput than the traditional multi-hop relaying strategy in half duplex wireless networks.
Source Title: Final Proceedings of the 2009 7th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, WiOpt 2009
URI: http://scholarbank.nus.edu.sg/handle/10635/72080
ISBN: 9781424449200
DOI: 10.4108/ICST.WIOPT2009.6342
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