Performance analysis of full-duplex D2D communications in multi-tier heterogeneous wireless networks

Affiliation of Author(s):计算机科学与技术学院/人工智能学院/软件学院

Journal:Proc. - IEEE Int. Symp. Parallel Distrib. Process. Appl. IEEE Int. Conf. Ubiquitous Comput. Commun., ISPA/IUCC

Abstract:Full-duplex (FD) has been considered as a promising technology to significantly improve the spectrum efficiency in 5G networks. Considering the current self-interference cancellation (SIC) techniques, full-duplex is more suitable for device-To-device (D2D) and small cell communications which have small transmission range and low transmit power. However, the interference induced by full-duplex could reduce the performance gain, especially in high density multi-Tier HetNets. Naturally, the performance analysis of full-duplex D2D communications in such environment is required. In this work, we present a tractable analytical model based on stochastic geometry. Specifically, the coverage probability and spectrum efficiency of D2D operations in different modes are analyzed considering both perfect SIC and imperfect SIC. And analytical expressions are obtained which are further evaluated by extensive simulations. The results indicate that in high-dense multi-Tier HetNets, the increasing number of users transmitting in FD-D2D mode could impair the entire network throughput due to the interference incurred. However, with appropriate choice of proportions of users in different transmission modes, the performance gain of full-duplex D2D communications can be achieved. The results obtained can be helpful for optimal network deployment and operations. © 2017 IEEE.

Translation or Not:no

Date of Publication:2018-05-25

Co-author:Xia, Shaoqi,zhukun,Bryce Zhai,Gong, Shimin

Correspondence Author:cb

Date of Publication:2018-05-25