1On the Capacity of Network Coding with Diverstiy

Abstract — In this paper, we study network coding in the context of wireless communications. A new form of network coding is developed without the assumptions of precise phase synchronization and high transmission power. Wireless diversity is efficiently utilized by applying a distributed strategy of relay selection to network coding. To facilitate performance evaluation, two information-theoretic metrics, the outage and ergodic capac-ity, are studied. Our analytical and simulation results show that the proposed protocol can achieve more robust performance and higher system throughput than the comparable schemes. I