Relays for interference management: Feedback, amplification and neutralization

Author

Chaaban, Anas ; Gherekhloo, Soheil ; Sezgin, Aydin

Author_Institution

Dept. of Digital Commun. Syst., RUB, Germany

fYear

2013

fDate

16-19 June 2013

Firstpage

220

Lastpage

224

Abstract

The interference relay channel is considered as communication theoretic model for performance analysis of cell edge users in the presence of interference. As the directed links to those users are weak, a relay station is deployed which utilizes both the forward links to the destinations and out-of-band feedback links to the sources for efficient interference management. Different interference management strategies based on amplify-and-forward, compute-and-forward, and interference neutralization are investigated and their performance compared in terms of spectral efficiency. It turns out that in the high SNR regime utilizing feedback is more beneficial than neutralization to those users while the behaviour is swapped in the low SNR regime.

Keywords

Gaussian channels; Gaussian distribution; amplify and forward communication; interference (signal); relay networks (telecommunication); telecommunication network reliability; amplify and forward; cell edge users; communication theoretic model; compute and forward; forward links; high SNR regime; interference management; interference neutralization; interference relay channel; out of band feedback links; relay station; spectral efficiency; Decoding; Interference; Lattices; Radio frequency; Relays; Signal to noise ratio; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications (SPAWC), 2013 IEEE 14th Workshop on

Conference_Location

Darmstadt

ISSN

1948-3244

Type

conf

DOI

10.1109/SPAWC.2013.6612044

Filename

6612044