Joint Subchannel Pairing and Power Control for Cognitive Radio Networks with Amplify-and-Forward Relaying

Table 1

Comparison of the proposed optimal algorithm and suboptimal algorithms.

Algorithm	Optimal algorithm	Suboptimal Algorithm  1	Suboptimal Algorithm  2
Resource allocation	Joint optimal subchannel pairing and power allocation	Given fixed subchannel pairing	Optimal subchannel pairing
		Optimal power allocation	Equal power distribution