Title :
Outage behavior of selective relaying schemes
Author :
Woradit, Kampol ; Quek, Tony Q S ; Suwansantisuk, Watcharapan ; Wymeersch, Henk ; Wuttisittikulkij, Lunchakorn ; Win, Moe Z.
Author_Institution :
Lab. for Inf. & Decision Syst., Massachusetts Inst. of Technol., Cambridge, MA, USA
fDate :
8/1/2009 12:00:00 AM
Abstract :
Cooperative diversity techniques can improve the transmission rate and reliability of wireless networks. For systems employing such diversity techniques in slow-fading channels, outage probability and outage capacity are important performance measures. Existing studies have derived approximate expressions for these performance measures in different scenarios. In this paper, we derive the exact expressions for outage probabilities and outage capacities of three proactive cooperative diversity schemes that select a best relay from a set of relays to forward the information. The derived expressions are valid for arbitrary network topology and operating signal-to-noise ratio, and serve as a useful tool for network design.
Keywords :
diversity reception; fading channels; radio networks; radio repeaters; telecommunication network reliability; telecommunication network topology; cooperative diversity techniques; fixed selective decode-and-forward; network design; network topology; outage capacity; outage probability; relay selection procedure; reliability; selective relaying schemes; signal-to-noise ratio; slow-fading channels; smart selective decode-and-forward; wireless networks; Capacity planning; Data communication; Decoding; Diversity reception; Laboratories; Network topology; Poles and towers; Relays; Signal design; Wireless networks; Selective relaying, cooperative communication, outage probability, outage capacity, decode-and-forward;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/TWC.2009.080504
