  In this paper, we propose a novel three-time-slot transmission scheme
combined with an efficient embedded linear channel equalization (ELCE)
technique for the Physical layer Network Coding (PNC). Our transmission scheme,
we achieve about 33% increase in the spectral efficiency over the conventional
two-time-slot scheme while maintaining the same end-toend BER performance.We
derive an exact expression for the endto- end BER of the proposed
three-time-slot transmission scheme combined with the proposed ELCE technique
for BPSK transmission. Numerical results demonstrate that the exact expression
for the end-to-end BER is consistent with the BER simulation results.
