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Effect of imperfect channel state information and co‐channel interferences on two‐hop fixed gain amplify‐and‐forward relay networks with beamforming
Author(s) -
Lin Min,
Wei Heng,
An Kang,
Ouyang Jian,
Huang Yongming
Publication year - 2014
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.2822
Subject(s) - relay , beamforming , computer science , hop (telecommunications) , channel (broadcasting) , diversity gain , channel state information , telecommunications , array gain , imperfect , bit error rate , topology (electrical circuits) , computer network , mimo , wireless , electrical engineering , antenna array , physics , power (physics) , engineering , linguistics , philosophy , quantum mechanics , antenna (radio)
Summary This letter investigates the joint effects of imperfect channel state information and co‐channel interferences on a two‐hop fixed gain amplify‐and‐forward (AF) relay network with beamforming. Specifically, the analytical expressions of the outage probability and the average symbol error rate for the AF relaying are derived. Moreover, the asymptotic analysis at high signal‐to‐noise ratio is also presented to reveal the diversity order and array gain of the considered AF relay system. Finally, computer simulations are given to confirm the validity of the analytical results. Copyright © 2014 John Wiley & Sons, Ltd.