  The recent developments in self-interference (SI) cancellation techniques
have led to the practical realization of full-duplex (FD) radios that can
perform simultaneous transmission and reception. FD technology is attractive
for various legacy communications standards. In this paper, after discussing
the opportunities of FD technology at the network layer, we present a
cross-layer aided routing protocol, termed as X-FDR, for multi-hop FD wireless
networks. X-FDR exploits a Physical (PHY) layer model capturing imperfection of
SI cancellation. At the medium access control (MAC) layer, X-FDR adopts an
optimized MAC protocol which implements a power control mechanism without
creating the hidden terminal problem. X-FDR exploits the unique characteristics
of FD technology at the network layer to construct energy-efficient and low
end-to-end latency routes in the network. Performance evaluation demonstrates
the effectiveness of X-FDR in achieving the gains of FD at higher layers of the
protocol stack.
