Title :
Relay Selection in Dual-Hop Vehicular Networks
Author :
Seyfi, Mehdi ; Muhaidat, Sami ; Liang, Jie ; Uysal, Murat
Author_Institution :
Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC, Canada
Abstract :
In this letter, we investigate cooperative diversity with relay selection over cascaded Rayleigh fading channels. In particular, we analyze the performance of a relay selection scheme for cooperative vehicular networks with the decode-and-forward (DF) protocol. Only the “best” relay, which satisfies an index of merit, is selected. We ignore the direct transmission between the source (S) and its destination (D), and assume that the destination has perfect knowledge of the S → R and R → D channel gains. We study the performance of the underlying scheme in terms of outage probability and investigate its achievable diversity order.
Keywords :
Rayleigh channels; cooperative communication; decode and forward communication; diversity reception; probability; vehicular ad hoc networks; cascaded rayleigh fading channels; channel gains; cooperative diversity; decode-and-forward protocol; diversity order; dual-hop vehicular networks; outage probability; relay selection; Decoding; Fading; Frequency modulation; Random variables; Relays; Signal to noise ratio; Vehicles; Cooperative diversity; inter-vehicular networks; outage probability; relay selection;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2010.2102017
