Multi-Hop Asynchronous Cooperative Diversity: Performance analysis

Kamel Tourki (1) , Luc Deneire (1)

1 I3S - Laboratoire d'Informatique, Signaux, et Systèmes de Sophia Antipolis

Mobile users with single antennas can use spatial transmission diversity through cooperative space-time encoded transmission. In this paper, we present an end-to-end performance analysis of two-hop asynchronous cooperative diversity with regenerative relays over Rayleigh block-flat-fading channels, in which a precoding frame-based scheme with packet-wise encoding is used. This precoding is based on the addition of a cyclic prefix which is implemented as a training sequence. We derive, for equal and unequal sub-channel gains, the bit-error rate and the end-to-end bit-error rate expressions for binary phase-shift keying. We also present the performance of the frame-error rate and the end-to-end frame-error rate. Finally, comparisons between three system configurations, differing by the amount of cooperation, are presented. Furthermore, simulations show that the analytical results are correct at all SNRs.

Domaines: Réseaux et télécommunications [cs.NI]

Kamel Tourki, Luc Deneire. Multi-Hop Asynchronous Cooperative Diversity: Performance analysis. IEEE - The 3rd International Symposium on Communications, Control and Signal Processing, Mar 2008, St. Julians, Malta. pp.1. ⟨hal-00224279⟩