Energy saving and channel access algorithm of unlicensed D2D networks in power Internet of things

被引：0
|
作者：
Sun C. [1 ]
Wu Z.-Y. [2 ]
Yuan J.-T. [2 ]
机构：
[1] Zhejiang Huayun Information Technology Limited Company, Hangzhou
[2] School of Information and Electronic Engineering, Zhejiang University, Hangzhou
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2020年 / 54卷 / 10期
关键词：
Channel access mechanism; Interior point method; Power consumption; Resource allocation; Unlicensed device-to-device communication (D2D-U);
D O I：
10.3785/j.issn.1008-973X.2020.10.001
中图分类号：
学科分类号：
摘要：
Joint spectrum and power allocation was analyzed to find the allocation which minimizes the power consumption by considering the power consumption of terminals in unlicensed device-to-device (D2D) communication. A channel access protocol on unlicensed channels was proposed, which determines the unlicensed channels used by the D2D pairs and the time fraction used on the unlicensed channels with the assistance of the licensed channels. Then an optimization problem was raised, whose objective was to minimize the total transmission power of the system. The data rates of D2D pairs and interference to base station (BS) were considered. The optimization problem can be transformed to a convex one and solved by the interior point method. The effectiveness of unlicensed D2D (D2D-U) networks was verified by numerical simulation results. The optimal allocation can be obtained by the proposed algorithm. Copyright ©2020 Journal of Zhejiang University (Engineering Science). All rights reserved.
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页码：1867 / 1873
页数：6
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