Interference alignment in device-to-device LAN underlaying cellular networks

Author

Lu Yang ; Wei Zhang

Author_Institution

Sch. of Electr. Eng. & Telecommun., Univ. of New South Wales, Sydney, NSW, Australia

fYear

2014

fDate

19-21 Nov. 2014

Firstpage

21

Lastpage

25

Abstract

This paper studies a Device-to-Device (D2D) LAN underlaying a cellular uplink, where multiple D2D users (DUs) intend to communicate with a D2D receiver. An interference alignment based D2D communications scheme is proposed to manage the interference caused by D2D devices on the cellular network. The scheme can prevent certain links of cellular users (CUs) from interference of D2D communications. In addition, the interference leakage of D2D communications on the remaining links of CUs is reduced by more than half on average, which means the performance of cellular link can be further protected by the proposed scheme. Further, the rate of D2D LAN can be improved by taking advantage of multiuser diversity. The performance analysis on both D2D LAN and cellular link is provided.

Keywords

cellular radio; radiofrequency interference; wireless LAN; D2D communications scheme; cellular networks; device-to-device LAN; interference alignment; interference leakage; multiuser diversity; Array signal processing; Interference constraints; Local area networks; MIMO; Uplink; Zirconium;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems (ICCS), 2014 IEEE International Conference on

Conference_Location

Macau

Type

conf

DOI

10.1109/ICCS.2014.7024758

Filename

7024758