TY - GEN
T1 - Simultaneous detection and estimation based spectrum sharing in cognitive radio networks
AU - Mansukhani, Jyoti
AU - Ray, Priyadip
AU - Varshney, Pramod K.
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2015/4/24
Y1 - 2015/4/24
N2 - A new spectrum sharing strategy based on coupled detection and estimation is proposed for cognitive radio networks. The strategy consists of the following steps: First the secondary user (SU) listens to the spectrum allocated to the primary user (PU) to detect the state of the PU and transmits if the PU is inactive. However, if the PU is active, the SU estimates the PU location and then makes a decision about the reliability of the estimate. The SU transmits via beamforming, with a null in the estimated direction of the PU, only when the estimate is classified as reliable. Therefore, the proposed method is able to trade-off throughput for reduced interference at the PU. We formulate this problem mathematically and derive the optimum strategy that maximizes the throughput of the cognitive radio system under average interference power constraint at the PU. Finally, we provide simulation results to demonstrate the performance of the proposed spectrum sharing strategy.
AB - A new spectrum sharing strategy based on coupled detection and estimation is proposed for cognitive radio networks. The strategy consists of the following steps: First the secondary user (SU) listens to the spectrum allocated to the primary user (PU) to detect the state of the PU and transmits if the PU is inactive. However, if the PU is active, the SU estimates the PU location and then makes a decision about the reliability of the estimate. The SU transmits via beamforming, with a null in the estimated direction of the PU, only when the estimate is classified as reliable. Therefore, the proposed method is able to trade-off throughput for reduced interference at the PU. We formulate this problem mathematically and derive the optimum strategy that maximizes the throughput of the cognitive radio system under average interference power constraint at the PU. Finally, we provide simulation results to demonstrate the performance of the proposed spectrum sharing strategy.
UR - http://www.scopus.com/inward/record.url?scp=84940495711&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84940495711&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2014.7094624
DO - 10.1109/ACSSC.2014.7094624
M3 - Conference contribution
AN - SCOPUS:84940495711
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1088
EP - 1092
BT - Conference Record of the 48th Asilomar Conference on Signals, Systems and Computers
A2 - Matthews, Michael B.
PB - IEEE Computer Society
T2 - 48th Asilomar Conference on Signals, Systems and Computers, ACSSC 2015
Y2 - 2 November 2014 through 5 November 2014
ER -