Precoding and Distributed STBC for Asynchronous Cooperative Diversity

Kamel Tourki (1) , Luc Deneire (1)

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

For mobile users without antenna arrays, transmission diversity can be achieved with cooperative space-time encoded transmissions. In this paper, a new precoding frame-based scheme with packet-wise encoding is proposed. This precoding is based on the addition of a cyclic prefix, which is overhead, so we put more information in it by implementing this cyclic prefix as a training sequence. This scheme offers us additional known symbols and enables better synchronization and (potentially) channel estimation.

Mots clés: Cyclic Prefix; Cooperative diversity; synchronization; distributed STBC; frequency selective channels; linear block precoding; Cyclic Prefix.

Domaines: Réseaux et télécommunications [cs.NI]

Kamel Tourki, Luc Deneire. Precoding and Distributed STBC for Asynchronous Cooperative Diversity. The 8th International Symposium on Wireless Personal Multimedia Communications, Sep 2005, Aalborg, Denmark. pp.1. ⟨hal-00223936⟩