TY - GEN
T1 - Adaptive power control scheme for the cognitive radio system based on receiver sensitivity
AU - Bala, Indu
AU - Bhamrah, Manjit Singh
AU - Rana, Vanita
AU - Jain, Neelu
AU - Singh, Ghanshyam
N1 - Publisher Copyright:
© Springer India 2015.
PY - 2015
Y1 - 2015
N2 - Cognitive radio has been proposed as the most promising technology to overcome the spectrum scarcity problem by exploiting the vacant frequency band of assigned licensed spectra; though some tradeoffs exist to protect the licensed primary user communication and to enhance the throughput of unlicensed secondary cognitive user. Through spectrum sensing and power control scheme, this issue can be addressed well as it allows the cognitive user to access the licensed band when primary user is not using it. In most of the previous works, it has been assumed that for transmission power control, perfect channel state information is available beforehand to the cognitive transmitter. This assumption does not hold good in practical scenarios and moreover it is difficult to implement spectrum sensing in device. To address this issue, a sensing free power control scheme based on CR receiver sensitivity is proposed in this paper. It allows cognitive user to controls its transmission power adaptively by approximating the distance from primary through cognitive receiver sensitivity. Simulation results are presented to verify the theoretical analysis.
AB - Cognitive radio has been proposed as the most promising technology to overcome the spectrum scarcity problem by exploiting the vacant frequency band of assigned licensed spectra; though some tradeoffs exist to protect the licensed primary user communication and to enhance the throughput of unlicensed secondary cognitive user. Through spectrum sensing and power control scheme, this issue can be addressed well as it allows the cognitive user to access the licensed band when primary user is not using it. In most of the previous works, it has been assumed that for transmission power control, perfect channel state information is available beforehand to the cognitive transmitter. This assumption does not hold good in practical scenarios and moreover it is difficult to implement spectrum sensing in device. To address this issue, a sensing free power control scheme based on CR receiver sensitivity is proposed in this paper. It allows cognitive user to controls its transmission power adaptively by approximating the distance from primary through cognitive receiver sensitivity. Simulation results are presented to verify the theoretical analysis.
KW - Cognitive radio
KW - Receiver sensitivity
KW - Signal to interference plus noise ratio
KW - Transmission power
UR - http://www.scopus.com/inward/record.url?scp=84925354511&partnerID=8YFLogxK
U2 - 10.1007/978-81-322-2274-3_9
DO - 10.1007/978-81-322-2274-3_9
M3 - Conference contribution
AN - SCOPUS:84925354511
T3 - Lecture Notes in Electrical Engineering
SP - 69
EP - 79
BT - Computational Advancement in Communication Circuits and Systems - Proceedings of ICCACCS 2014
A2 - Dalapati, Goutam Kumar
A2 - Mukherjee, Moumita
A2 - Maharatna, Koushik
A2 - Banerjee, P.K.
A2 - Mallick, Amiya Kumar
A2 - Mallick, Amiya Kumar
PB - Springer Verlag
T2 - 1st International Conference on Computational Advancement in Communication Circuits and Systems, ICCACCS 2014
Y2 - 30 October 2014 through 1 November 2014
ER -
