Full Rate Full Diversity Wireless Multicasting for Vehicle-to-Vehicle and Vehicle-to-Infrastructure Communications

摘要

Multicasting is a spectrally efficient method for supporting group communication by allowing transmission of packets to multiple destinations using fewer resources. To incorporate cooperative diversity, Cooperative Extended Balanced Space-Time Block Codes (CEBSTBCs) have been proposed providing full diversity when one or more feedback bits are sent back via feedback channel. However, the CEBSTBCs are designed for cooperative unicast communication in the literature. This paper presents a novel wireless multicasting scheme which selects the optimum CEBSTBC for all vehicular users to support wireless multicast. The performance of the proposed scheme is investigated for not only vehicle-to-vehicle communication but also for vehicle-to-infrastructure cases. Extensive detailed simulations are performed to show the feasibility of full rate and full diversity multicast service provisioning in vehicular communications.