Shared Relay Networks with Linear Receivers at the Relay: Two-Cell Case

Author

Hemachandra, Kasun T. ; Beaulieu, Norman C.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada

Volume

62

Issue

4

fYear

2014

fDate

Apr-14

Firstpage

1230

Lastpage

1239

Abstract

The downlink performance of a two-cell relay enhanced wireless network is investigated. A single relay is shared by the two base stations in the system. The relay is assumed to be placed in a geographic region covered by both base stations. The relay station is operating in the decode-and-forward mode. Closed-form approximations which estimate the exact results extremely closely are derived for the outage probability and the ergodic rate of the system. The impact of finite rate channel state information feedback on the user ergodic rate is examined.

Keywords

cellular radio; decode and forward communication; feedback; probability; radio receivers; relay networks (telecommunication); base stations; channel state information feedback; closed-form approximations; decode-and-forward mode; downlink performance; linear receivers; outage probability; relay station; shared relay networks; two-cell relay enhanced wireless network; user ergodic rate; Base stations; Diversity reception; Feedback; Interference; Receivers; Relays; Signal to noise ratio; Decode-and-forward; finite rate feedback; outage probability; shared relay; zero-forcing receiver;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2014.032314.130430

Filename

6783952