In this paper, we study a decode-and-forward twoway

relaying network. We propose an opportunistic two-way

relaying (O-TR) scheme based on joint network coding and

opportunistic relaying. In the proposed scheme, one single “best

relay” is selected by MaxMin criterion to perform network

coding on two decoded symbols sent from two sources, and then

to broadcast the network-coded symbols back to the two sources.

The performance of the proposed scheme is analyzed, and verified

throughMonte Carlo simulations. Results show that the proposed

scheme achieves a better performance compared to the fullydistributed

space-time two-way relaying (FDST-TR), which has

been identified as the best decode-and-forward two-way relaying

method so far.