TY - GEN
T1 - Optimal cooperative spectrum sensing over composite fading channels
AU - Selim, Bassant
AU - Alhussein, Omar
AU - Karagiannidis, George K.
AU - Muhaidat, Sami
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/9/8
Y1 - 2015/9/8
N2 - In this paper, we study cooperative spectrum sensing over composite fading channels. First, we consider the Mixture of Gaussian distribution to model the composite channel statistics and derive a simple generic approximation for the average probability of detection which can be efficiently applied to any composite fading channel. Second, we derive the optimal voting rule for hard combining in cooperative spectrum sensing over composite fading channels. In particular, we derive an exact closed form expression for the optimal decision fusion rule (k-out-of-N) that minimizes the total sensing error in cognitive radio networks (CRNs). This expression enjoys both simplicity and generality, making it applicable to any CRN, regardless of the channel considered. Numerical results validate the proposed analysis and show that the proposed combining rule efficiently minimizes the CRN's total error and significantly outperforms the AND, OR and majority rules that are usually considered.
AB - In this paper, we study cooperative spectrum sensing over composite fading channels. First, we consider the Mixture of Gaussian distribution to model the composite channel statistics and derive a simple generic approximation for the average probability of detection which can be efficiently applied to any composite fading channel. Second, we derive the optimal voting rule for hard combining in cooperative spectrum sensing over composite fading channels. In particular, we derive an exact closed form expression for the optimal decision fusion rule (k-out-of-N) that minimizes the total sensing error in cognitive radio networks (CRNs). This expression enjoys both simplicity and generality, making it applicable to any CRN, regardless of the channel considered. Numerical results validate the proposed analysis and show that the proposed combining rule efficiently minimizes the CRN's total error and significantly outperforms the AND, OR and majority rules that are usually considered.
KW - Composite fading channels
KW - cooperative spectrum sensing
KW - hard combining
KW - optimal voting rule
KW - probability of detection
UR - https://www.scopus.com/pages/publications/84947729121
U2 - 10.1109/ICCW.2015.7247233
DO - 10.1109/ICCW.2015.7247233
M3 - Conference contribution
AN - SCOPUS:84947729121
T3 - 2015 IEEE International Conference on Communication Workshop, ICCW 2015
SP - 520
EP - 525
BT - 2015 IEEE International Conference on Communication Workshop, ICCW 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE International Conference on Communication Workshop, ICCW 2015
Y2 - 8 June 2015 through 12 June 2015
ER -