Title :
Increasing spectrum capacity for ad hoc networks using cognitive radios: an analytical model
Author :
Al-Mahdi, Hassan ; Kalil, Mohamed A. ; Liers, Florian ; Mitschele-Thiel, Andreas
Author_Institution :
Dept. of Comput. Sci., Suez Canal Univ., Egypt
Abstract :
In this letter, an analytical model to evaluate the performance of ad hoc devices equipped with cognitive radio capabilities, is investigated. By applying cognitive radio technology, the ad hoc devices will utilize the unused spectrum of the existing legacy systems in an opportunistic manner in addition to using the unlicensed spectrum. Therefore, the network throughput will be increased. The results show that the performance is improved in terms of blocking and dropping probabilities.
Keywords :
ad hoc networks; cognitive radio; probability; ad hoc device; ad hoc network; blocking probability; cognitive radio; dropping probability; legacy system; spectrum capacity; Access protocols; Ad hoc networks; Analytical models; Chromium; Cognitive radio; Computer science; Media Access Protocol; Personal communication networks; Predictive models; Throughput; Cognitive radio, ad hoc networks, spectrum sharing, Markov chain;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2009.090103
