A Low-Overhead Cooperative Retransmission Scheme for IR-UWB Networks

摘要

The UWB unique properties such as fine ranging and immunity to small scale fading are utilized in order to exploit the multiuser diversity in UWB networks. The optimalcooperation strategies in the absence of control packet overheadare analyzed in the proactive and reactive settings. It is shownthat the proposed method achieves a considerable diversity gainwhile minimizing the overhead of control packet exchange thatis required for coordination among the relays.