On Transport Capacity of Full Duplex Ad Hoc Networks

This work studies the transport capacity of the emerging full duplex wireless ad hoc networks. Unlike in isolated point-to- point transmission, in ad hoc networks, multiple nodes access the shared spectrum. The inevitable co-channel interference among neighboring nodes capable of full duplex transmission do not allow capacity doubling over half-duplex nodes even after canceling self interference. To assess the capacity gain, we extend the concept of transport capacity to full duplex ad hoc networks. We derive both an upper and a lower bounds for the network transport capacity in consideration of co-channel interference. Based on the analysis, we present numerical results to demonstrate the limit of transport capacity improvement between full duplex and half duplex networks. We also provide some helpful design guidelines for deploying ad hoc networks of full-duplex capable nodes.