Title :
Sensor Set Selection under Correlated Log-Normal Shadowing for Cognitive Radio
Author :
Zhang, Xiao ; Wang, Jin-long ; Wu, Qi-hui
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Tech., Nanjing, China
Abstract :
The number of sensors to use for cooperative sensing is a compromise between sensing performance and consumption of system resources. Firstly, the definition of optimal sensor set (OptSS) is given out. Then an optimal selecting method of OptSS is acquired. Lastly, a sub optimal adaptive selecting algorithm of OptSS based on greedy with a lower complexity is proposed, which not only obtains the near-optimal solution rapidly, but also adapts to the variety of dynamic network topologies. Analysis and simulation results demonstrate the effectiveness and reliability of the proposed greedy adaptive sensor set selecting algorithm.
Keywords :
cognitive radio; greedy algorithms; sensors; telecommunication network topology; cognitive radio; correlated log-normal shadowing; dynamic network topology; greedy adaptive sensor set selecting algorithm; optimal adaptive selecting algorithm; optimal sensor set; system resource consumption; Cognitive radio; Computer networks; Network topology; Programmable logic arrays; Sensor fusion; Sensor phenomena and characterization; Sensor systems; Shadow mapping; Wireless communication; Wireless sensor networks; Cognitive Radio; Sensor Set Selection;
Conference_Titel :
Networks Security Wireless Communications and Trusted Computing (NSWCTC), 2010 Second International Conference on
Conference_Location :
Wuhan, Hubei
Print_ISBN :
978-0-7695-4011-5
Electronic_ISBN :
978-1-4244-6598-9
DOI :
10.1109/NSWCTC.2010.154
