Relay Selection in Dual-Hop Vehicular Networks
Mehdi Seyfi, Sami Muhaidat, Jie Liang, Murat Uysal · IEEE Signal Processing Letters · 2010
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 theS→RandR→Dchannel gains. We study the performance of the underlying scheme in terms of outage probability and investigate its achievable diversity order.