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AuthorHasna , Mazen
AuthorAlouini M.-S.
Available date2022-04-26T11:07:00Z
Publication Date2004
Publication NameIEEE Transactions on Wireless Communications
ResourceScopus
Identifierhttp://dx.doi.org/10.1109/TWC.2004.837470
URIhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-11844274674&doi=10.1109%2fTWC.2004.837470&partnerID=40&md5=3f980dc4bd1d582ef31c5e11867043bf
URIhttp://hdl.handle.net/10576/30571
AbstractThis letter presents a study on the end-to-end performance of dual-hop wireless communication systems equipped with nonregenerative fixed gain relays and operating over flat Rayleigh-fading channels. More specifically, it first derives generic closed-form expressions for the outage probability and the average probability of error when the relays have arbitrary fixed gains. It then proposes a specific fixed gain relay that benefits from the knowledge of the first hop's average fading power and compares its performance with previously proposed relay gains that in contrast require knowledge of the instantaneous channel state information of the first hop. Finally, the letter investigates the effect of the relay saturation on the performance of the systems under consideration. Numerical results show that nonregenerative systems with fixed gain relays have a comparable performance to nonregenerative systems with variable gain, more complex, relays. These results also show that relay saturation of these systems results in a minimal loss in performance.
SponsorNational Science Foundation; Qatar University
Languageen
PublisherIEEE
SubjectBit error rate
Communication channels (information theory)
Decoding
Probability
Rayleigh fading
Signal receivers
Average bit-error rate (BER)
Collaborative/cooperative diversity
Multihop transmission
Outage probability
Wireless telecommunication systems
TitleA performance study of dual-hop transmissions with fixed gain relays
TypeArticle
Pagination1963-1968
Issue Number6
Volume Number3
dc.accessType Abstract Only


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