[1]龚文熔,庞立华,王 静,等.距离受限的蜂窝网络D2D通信资源分配算法[J].西安科技大学学报,2020,(03):492-497.[doi:10.13800/j.cnki.xakjdxxb.2020.0316]
 GONG Wen-rong,PANG Li-hua,WANG Jing,et al.Distance constrained resource allocation algorithm of D2D communication underlaying cellular networks[J].Journal of Xi'an University of Science and Technology,2020,(03):492-497.[doi:10.13800/j.cnki.xakjdxxb.2020.0316]
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距离受限的蜂窝网络D2D通信资源分配算法(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2020年03期
页码:
492-497
栏目:
出版日期:
2020-05-15

文章信息/Info

Title:
Distance constrained resource allocation algorithm of D2D communication underlaying cellular networks
文章编号:
1672-9315(2020)03-0492-06
作者:
龚文熔庞立华王 静夏 猛李文娟
(西安科技大学 通信与信息工程学院,陕西 西安 710054)
Author(s):
GONG Wen-rongPANG Li-huaWANG JingXIA MengLI Wen-juan
(College of Communication and Information Engineering,Xi'an University of Science and Technology,Xi'an 710054,China)
关键词:
第5代移动通信网络 D2D通信 资源分配 距离受限 信干比
Keywords:
5G D2D communication resource allocation distance constrained signal to interference ratio
分类号:
TN 929.531
DOI:
10.13800/j.cnki.xakjdxxb.2020.0316
文献标志码:
A
摘要:
为了进一步提升第5代移动通信网络(5th Generation,5G)的系统性能以及用户的服务质量(Quality of Service,QoS),就蜂窝通信网络中终端直通(Device to Device,D2D)通信的资源分配问题,提出一种距离受限的资源分配算法。考虑D2D通信用户复用蜂窝通信用户的上行频率资源的情况。建立蜂窝网络中D2D通信系统模型; 分析D2D通信用户的接收信号和受到的干扰情况,推导出D2D通信用户的信干比表达式; 根据预设的信干比门限值,推导出D2D通信与蜂窝用户复用相同频率的安全距离; 基于推导出的复用安全距离,提出一种距离受限的资源分配算法。所提出的距离受限的资源分配算法将蜂窝通信用户占用的频率资源分配给复用安全距离之外的D2D通信对,能够确保D2D通信与蜂窝通信之间的干扰控制在合理范围之内。仿真结果表明:距离受限的资源分配算法能够有效提高系统吞吐量,并降低D2D通信的中断概率。
Abstract:
A scenario of Device to Device(D2D)communication underlaying cellular network system is examined in this study and a Distance Constrained Resource Allocation(DCRA)algorithm is developed.Firstly,we assume that the cellular user equipments(CUEs)share frequency with D2D user equipments(DUEs),and the Signal to Interference Ratio(SIR)performance of DUEs is derived.Then,according to a predefined SIR threshold,a reuse safe distance between DUE and CUE is deduced.Finally,DCRA algorithm is developed.DCRA algorithm can ansure the interferenceto be controlledwithin a reasonable range and properly allocates the available frequency resources to the D2D pairs.Numerical simulation results show that the proposed resource allocation algorithm is effective to improve the system throughput and to reduce the outage probability for D2D communications.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-01-03 责任编辑:高 佳
基金项目:国家自然科学基金(61701392,61701393); 西安科技大学优秀青年科技基金(2018YQ3-07)
通信作者:龚文熔(1989-),女,陕西安康人,博士,讲师,E-mail:gongwr@xust.edu.cn
更新日期/Last Update: 2020-05-15