Optimal power allocation and optimal relay selection for D2D communication

被引：1
|
作者：
Guo Y. [1 ]
Lü Y. [1 ]
Liu G. [1 ]
Yang S. [1 ]
机构：
[1] State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an
来源：
| 1600年 / Science Press卷 / 44期
关键词：
Channel capacity; Device-to-device; Power; Relay;
D O I：
10.3969/j.issn.1001-2400.2017.04.002
中图分类号：
学科分类号：
摘要：
Cellular users can be regarded as relay nodes in cooperation with the Device-to-Device (D2D)communication so as to lower the cost, improve spectrum efficiency and solve the problems of network coverage, as well as improving service quality. In this paper an optimal power allocation and optimal relay selection algorithm based on network coding is proposed for using cellular users in the bidirectional relay nodes system. By fixing the total power of the D2D link to be transmitted, this algorithm optimizes the transmission power of each node, and selects the relay node which can maximize the channel capacity of the D2D link as the best relay node. Simulation results show that compared with other protocols, the proposed protocol can significantly improve the channel capacity of the D2D link. © 2017, The Editorial Board of Journal of Xidian University. All right reserved.
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页码：7 / 11and180
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