Effect of primary network on performance of spectrum sharing AF relaying

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Full text:
Author(s): Quang Trung Duong, Vo Nguyen Quoc Bao, Hung Tran, George C. Alexandropoulos, Hans-Jürgen Zepernick
Title: Effect of primary network on performance of spectrum sharing AF relaying
Journal: Electronics Letters
Year: 2012
Volume: 48
Issue: 1
Pagination: 25-U95
ISSN: 0013-5194
Publisher: IET
URI/DOI: 10.1049/el.2011.3151
ISI number: 000298878900013
Organization: Blekinge Institute of Technology
Department: School of Computing (Sektionen för datavetenskap och kommunikation)
School of Computing S-371 79 Karlskrona
+46 455 38 50 00
Authors e-mail: dqt@bth.se
Language: English
Abstract: Most of the research in spectrum sharing has neglected the effect of interference from primary users. In this reported work, the performance of spectrum sharing amplify-and-forward relay networks under interference-limited environment, where the interference induced by the transmission of primary networks is taken into account, is investigated. In particular, a closed-form expression tight lower bound of outage probability is derived. To reveal additional insights into the effect of primary networks on the diversity and array gains, an asymptotic expression is also obtained.
Subject: Telecommunications\General
Signal Processing\General
Keywords: Cognitive radio, spectrum sharing, AF relaying