Title :
Resource Allocation for Mitigating the Effect of Sensing Errors in Cognitive Radio Networks
Author :
Lim, Hyoung-Jin ; Seol, Dae-Young ; Im, Gi-Hong
Author_Institution :
Dept. of Electron. & Electr. Eng., Pohang Univ. of Sci. & Technol., Pohang, South Korea
fDate :
12/1/2010 12:00:00 AM
Abstract :
This letter proposes a resource allocation scheme to mitigate the effect of sensing errors in cognitive radio networks. When a spectrum sensor misses primary signals, the secondary transmission can be interfered with by the primary transmission, whereas the interference to the primary system can be limited to a tolerable level. To deal with this problem, we consider the utility for inaccurate sensing in the proposed resource allocation scheme. Simulation results show that a higher outage performance is achieved by the proposed scheme than the resource allocation scheme that does not consider the utility for inaccurate sensing.
Keywords :
cognitive radio; radio spectrum management; resource allocation; cognitive radio networks; resource allocation; sensing errors; spectrum sensor; Chromium; Fading; Interference; Resource management; Sensors; Wireless communication; Wireless sensor networks; Cognitive radio; inaccurate sensing; opportunistic spectrum access; resource allocation;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2010.101810.101456