EURASIP Journal on Wireless Communications and Networking

Table 1 Communication protocol

From: On the performance of bi-directional cognitive radio system with network coding at the physical layer

	Tx	Rx
Pre-stage	CR-BS	SU_0,k, SU_1,k
First stage	SU_0,k, SU_1,k	CR-BS
Second stage	CR-BS	SU_0,k, SU_1,k

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