P-persistent frame replication for resilient services in multi-radio wireless networks

Abstract

It is an important issue to provide resilient services in wireless networks where frequent frame errors are observed. In this paper, we propose a p-persistent frame replication scheme for resilient services in multi-radio wireless networks. In the p-persistent frame replication scheme, packets are transmitted over the primary link and the packets are redundantly sent over the secondary link with probability p. In addition, cooperative retransmission is devised to minimize the overhead in retransmission. Analytical expressions for the reliability, latency, and redundancy in the p-persistent frame replication scheme are derived and validated by extensive simulations. We also develop a binary search algorithm to obtain the optimal p to minimize the redundancy while satisfying the given latency and reliability requirements.