Joint Relay Selection and ARQ in Cooperative Diversity Wireless Networks

Abstract

The concept of cooperative diversity promises to offer the benefits of spatial diversity gains to handheld wireless devices with single antennas. So far the research has focused on special modulation or space-time coding in order to allow the cooperating terminals transmit simultaneously during the relay phase. In this paper, we proposed a joint relay selection and ARQ scheme in the cooperative diversity wireless networks. The simulation comparison of the direct transmission scheme, decode- and-forward scheme (DF) and joint relay selection and ARQ scheme showed that the proposed scheme can always achieve the highest throughput.