Power Control for D2D Underlaid Cellular Networks: Modeling, Algorithms, and Analysis

被引：309

作者：

Lee, Namyoon ^{[1
]}

Lin, Xingqin ^{[1
]}

Andrews, Jeffrey G. ^{[1
]}

Heath, Robert W., Jr. ^{[1
,2
,3
,4
]}

机构：

[1] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78701 USA

[2] Univ Texas Austin, Wireless Networking & Commun Grp, Austin, TX 78701 USA

[3] MIMO Wireless Inc, Austin, TX 78704 USA

[4] Kuma Signals LLC, Austin, TX 78731 USA

来源：

IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 2015年 / 33卷 / 01期

基金：

美国国家科学基金会;

关键词：

Power control; device-to-device communication; cellular networks; Poisson point process; stochastic geometry; TO-DEVICE COMMUNICATION;

D O I：

10.1109/JSAC.2014.2369612

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes a random network model for a device-to-device (D2D) underlaid cellular system using stochastic geometry and develops centralized and distributed power control algorithms. The goal of centralized power control is twofold: ensure that the cellular users have sufficient coverage probability by limiting the interference created by underlaid D2D users, while scheduling as many D2D links as possible. For the distributed power control method, the optimal on-off power control strategy is proposed, which maximizes the sum rate of the D2D links. Expressions are derived for the coverage probabilities of cellular, D2D links, and the sum rate of the D2D links in terms of the density of D2D links and the path-loss exponent. The analysis reveals the impact of key system parameters on the network performance. For example, the bottleneck of D2D underlaid cellular networks is the cross-tier interference between D2D links and the cellular user, not the D2D intratier interference when the density of D2D links is sparse. Simulation results verify the exactness of the derived coverage probabilities and the sum rate of D2D links.

引用

页码：1 / 13

页数：13

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