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المؤلفHasna , Mazen
المؤلفAlouini M.-S.
تاريخ الإتاحة2022-04-26T11:07:00Z
تاريخ النشر2004
اسم المنشورIEEE Transactions on Wireless Communications
المصدرScopus
المعرّفhttp://dx.doi.org/10.1109/TWC.2004.837470
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-11844274674&doi=10.1109%2fTWC.2004.837470&partnerID=40&md5=3f980dc4bd1d582ef31c5e11867043bf
معرّف المصادر الموحدhttp://hdl.handle.net/10576/30571
الملخصThis 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.
راعي المشروعNational Science Foundation; Qatar University
اللغةen
الناشرIEEE
الموضوعBit 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
العنوانA performance study of dual-hop transmissions with fixed gain relays
النوعArticle
الصفحات1963-1968
رقم العدد6
رقم المجلد3
dc.accessType Abstract Only


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