TY - GEN
T1 - Hard decision Cooperative Spectrum Sensing based on estimating the noise uncertainty factor
AU - Farag, Hossam M.
AU - Mohamed, Ehab Mahmoud
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/1/25
Y1 - 2016/1/25
N2 - Spectrum Sensing (SS) comprises the most important component in Cognitive Radio (CR) systems. Cooperative Spectrum Sensing (CSS) is proposed as an effective approach to improve detection performance in fading environments. This paper introduces an efficient energy detection based hard decision CSS algorithm to alleviate the noise uncertainty effect. In the proposed algorithm, the decision threshold is dynamically switched between two levels based on a prior prediction of the Primary User (PU) activity. The two threshold levels are evaluated using an estimated value of the noise uncertainty factor to maximize the probability of detection and minimize the probability of false alarm. The proposed algorithm is studied theoretically to deduce the enhanced detection and false alarm probabilities. Moreover, simulation analysis is used to confirm the theoretical claims and prove the high potency of the proposed scheme compared to the conventional CSS using different fusion rules.
AB - Spectrum Sensing (SS) comprises the most important component in Cognitive Radio (CR) systems. Cooperative Spectrum Sensing (CSS) is proposed as an effective approach to improve detection performance in fading environments. This paper introduces an efficient energy detection based hard decision CSS algorithm to alleviate the noise uncertainty effect. In the proposed algorithm, the decision threshold is dynamically switched between two levels based on a prior prediction of the Primary User (PU) activity. The two threshold levels are evaluated using an estimated value of the noise uncertainty factor to maximize the probability of detection and minimize the probability of false alarm. The proposed algorithm is studied theoretically to deduce the enhanced detection and false alarm probabilities. Moreover, simulation analysis is used to confirm the theoretical claims and prove the high potency of the proposed scheme compared to the conventional CSS using different fusion rules.
UR - https://www.scopus.com/pages/publications/84963593855
U2 - 10.1109/ICCES.2015.7393049
DO - 10.1109/ICCES.2015.7393049
M3 - Conference contribution
AN - SCOPUS:84963593855
T3 - Proceedings - 2015 10th International Conference on Computer Engineering and Systems, ICCES 2015
SP - 217
EP - 222
BT - Proceedings - 2015 10th International Conference on Computer Engineering and Systems, ICCES 2015
A2 - El-Din, Ayman M. Bahaa
A2 - El-Kharashi, M. Watheq
A2 - Zaki, Ahmed M.
A2 - Abdelaal, Wahied Gharieb Ali
A2 - Taher, Mohamad
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Computer Engineering and Systems, ICCES 2015
Y2 - 23 December 2015 through 24 December 2015
ER -