Underlay Device-to-Device Communications in LTE-A: Uplink or Downlink?

被引：0

作者：

Schmidt, Jorge F. ^{[1
]}

Atiq, Mahin K. ^{[1
]}

Schilcher, Udo ^{[1
]}

Bettstetter, Christian ^{[1
]}

机构：

[1] Univ Klagenfurt, Inst Networked & Embedded Syst, Klagenfurt, Austria

来源：

2015 IEEE 26TH ANNUAL INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR, AND MOBILE RADIO COMMUNICATIONS (PIMRC) | 2015年

基金：

奥地利科学基金会;

关键词：

CELLULAR NETWORKS;

D O I：

暂无

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：

Device-to-device (D2D) communications is a promising candidate for increasing the throughput of cellular systems towards 5G. Its current consideration for inclusion in LTE-A is attracting a lot of research interest, including work on mode selection, bandwidth allocation, and power control. Some consider the uplink for D2D operation while others focus on operation over the downlink. It is still unclear, however, which link is preferable for D2D operation. This paper addresses this issue focusing on the outage performance of D2D receivers. We use stochastic geometry tools for our analysis, considering realistic system parameters and Nakagami fading. We find that the interference from the cellular system on the downlink, which is correlated over consecutive time slots, favors underlay D2D operation, resulting in a lower outage probability for the D2D transmissions.

引用

页码：1542 / 1546

页数：5

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