Wireless Communications and Mobile Computing / 2020 / Article / Alg

Research Article

Censoring-Based Relay Transmission for Achieving Energy Efficiency in Cognitive Radio Networks

Algorithm 2: Joint sensing duration and transmission power allocation for CRT.

1: Initialization Parameters: tolerance , iteration index ;
2: Repeat
3:  Calculate ;
4:  Compute ;
5:  Calculate sensing time allocation factor of P1 by Algorithm 1
6:  If then (Solve P4 by Theorem 6)
7:   Calculate in ;
8:   Obtain optimal under ;
9:   Calculate in Theorem 5;
10:   If then (Solve P3 by Theorem 4)
11:    Calculate ;
12:    Obtain and in ;
13:    Obtain in ;
14:    Obtain in ;
15:    Compute ;
16:    Obtain ;
17:   Endif
18:  Endif
19:  Update ;
20: Until;
21: Output and optimal EE.
Algorithm 2: Joint sensing duration and transmission power allocation for CRT.

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