Capacity analysis of cooperative systems with relay selection in Nakagami-m fading

• Published in: IEEE communications letters Vol. 13; no. 9; pp. 637 - 639
• Main Authors: da Costa, D.B., Aissa, S.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-09-2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Approximation; Approximation methods; Broadcasting; Channels; Cooperative systems; ergodic capacity; Exact sciences and technology; Exact solutions; Fading; fixedgain relays; Guidelines; Mathematical analysis; Performance analysis; Relay; relay selection; Relaying; Relays; Signal processing; Signal to noise ratio; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Tin; Transmission and modulation (techniques and equipments); Transmitting antennas; Fading channels; Relaying; Relay; Approximate method; Outage; Cooperative systems; Ergodicity; fixed-gain relays; Approximation methods; Accuracy; Multihop network; Nakagami fading; Simulation; relay selection; ergodic capacity
• ISSN: 1089-7798; 1558-2558
• DOI: 10.1109/LCOMM.2009.091136

In this Letter, tight closed-form approximations for the ergodic capacity of dual-hop fixed-gain relaying systems are derived. Our analysis allows for independent Nakagami-m fading channels, with partial relay selection being employed in the first-hop transmission. Simulation results are presented in order to confirm the accuracy of the proposed approximations. It is noteworthy that our formulations can be easily extended for the outage capacity analysis and guidelines for such are provided.