Title :
Analysis of Search Schemes in Cognitive Radio
Author :
Luo, Ling ; Roy, Sumit
Author_Institution :
Univ. of Washington, Seattle
Abstract :
Cognitive radio systems face an important challenge - fast and reliable channel searching to enable secondary users to optimize available spectral resources. We revisit conventional URN models for channel occupancy and analyze the performance of several search schemes in terms of the mean time to detection. In particular, we focus on correlated Markov models for bin occupancy and highlight the performance of n-step serial search (nSS) algorithm.
Keywords :
Markov processes; cognitive radio; search problems; telecommunication network reliability; wireless channels; Markov models; channel reliability; cognitive radio search schemes; n-step serial search algorithm; spectral resources; Analytical models; Bandwidth; Chromium; Cognitive radio; Energy consumption; FCC; Face detection; Frequency domain analysis; Performance analysis; Time measurement; Cognitive Radio; channel model; search scheme;
Conference_Titel :
Sensor, Mesh and Ad Hoc Communications and Networks, 2007. SECON '07. 4th Annual IEEE Communications Society Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1268-4
Electronic_ISBN :
1-4244-1268-4
DOI :
10.1109/SAHCN.2007.4292877
