On Transmission Policies in Multihop Device-to-Device Communications with Network Coded Cooperation

Due to the expected amount of interconnected devices in the near future, a frequent communication setting will be the case where the end user is connected to the network through short range communication protocols to other mobile users. Therefore, there is an interest in introducing new mechanisms that provide reliable content distribution in these scenarios. Thus, in this work, we present ideal network coded transmission policies to reduce the number of transmissions in simple multihop networks. We propose two recoding schemes with a collision avoidance mechanism to reduce the number of transmission required to convey a batch of packets from a source to a destination through several non-interconnected relays. Our findings indicate benefits that when employing relays with a recoding scheme and different ideal medium access probabilities, reductions of at least 50% in the total number of transmissions might be attained.