Joint Dynamic Spectrum Access and Multi-Relay Selection: A Matching-Theory-Based Approach

Wenjun Xu, Xue Li, Yixin Wang, Chia-Han Lee, Zhiyong Feng

研究成果: Conference contribution同行評審

1 引文 斯高帕斯(Scopus)

摘要

In this paper, the problem of joint dynamic spectrum access and multi-relay selection is investigated in relayenabled cooperative communication systems to maximize the system sum-capacity. Since the considered problem is a mixed integer nonlinear program, which is generally intractable to find the optimal solution, two matching theory-based suboptimal algorithms are proposed to reduce the computational complexity for two different cases. For the case that each source node can only be assisted by one relay, a cyclic three-sided matching algorithm is firstly proposed to attain the stable matching results for the selection of the source node and the relay with the spectrum band used. Then, for the case that each source node can be assisted by more than one relay, a two-step matching algorithm is proposed to perform joint dynamic spectrum access and multi-relay selection. Simulation results show that the proposed algorithms, with much lower complexity compared to the optimal exhaustive search, can achieve the near-optimal performance with a gap to the optimum being less than 5%.

原文English
主出版物標題2017 IEEE 85th Vehicular Technology Conference, VTC Spring 2017 - Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781509059324
DOIs
出版狀態Published - 14 十一月 2017
事件85th IEEE Vehicular Technology Conference, VTC Spring 2017 - Sydney, Australia
持續時間: 4 六月 20177 六月 2017

出版系列

名字IEEE Vehicular Technology Conference
2017-June
ISSN(列印)1550-2252

Conference

Conference85th IEEE Vehicular Technology Conference, VTC Spring 2017
國家/地區Australia
城市Sydney
期間4/06/177/06/17

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