Enhancing Cellular Performance Through Device-to-Device Distributed MIMO

被引：6
作者：
Guo, Jiajia [1 ,2 ,3 ]
Yu, Wei [4 ]
Yuan, Jinhong [5 ]
机构：
[1] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia
[2] CSIRO, Data61, Marsfield, NSW 2122, Australia
[3] Univ Calif Berkeley, Calif Partners Adv Transportat Technol PATH, Berkeley, CA 94720 USA
[4] Univ Toronto, Toronto, ON M5S 3G4, Canada
[5] Univ New South Wales, Sydney, NSW 2052, Australia
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 2018年 / 66卷 / 12期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Cooperative communications; MIMO; device-to-device communications; resource allocation; RESOURCE-ALLOCATION; COMMUNICATION; DOWNLINK; UNDERLAY; SYSTEMS;
D O I：
10.1109/TCOMM.2018.2859981
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：
The integration of local device-to-device (D2D) communications and cellular connections has been intensively studied to satisfy co-existing D2D and cellular communication demand. In future cellular networks, there will be numerous standby users possessing D2D communication capabilities in close proximity to each other. Considering that these standby users do not necessarily request D2D communications all the time, in this paper we propose a hybrid D2D-cellular scheme to make use of these standby users and to improve the rate performance for cellular users. More specifically, through D2D links, a virtual antenna array can be formed by sharing antennas across different terminals to realize the diversity gain of MIMO channels. This paper considers the use of millimeter wave links to enable high data rate D2D communications. We then design an orthogonal D2D multiple access protocol and formulate the optimization problem of joint cellular and D2D resource allocation for downlink transmissions using the proposed scheme. We obtain a closed-form solution for D2D resource allocation, which reveals useful insights for practical system design. Numerical results from extensive system-level simulations demonstrate that the rate performance of cellular users is significantly improved.
引用
收藏
页码：6096 / 6109
页数：14
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