Paper Info
Title
Estimation of radio capacity of a spread spectrum cognitive radio Rayleigh fading system
Abstract
The problem of estimating the optimum radio capacity of a spread spectrum non-cellular Cognitive Radio (CR) system, operating in a Rayleigh fading environment, is examined. The optimization is based on the maximization of the average channel capacity (in the Shannon-Hartley sense) available to primary user. In this work, the system's radio capacity is expressed in terms of the number of simultaneously transmitting secondary users but considering only one primary user which receives the spread spectrum simultaneously transmitted signals, through an optimum maximal-ratio combiner (MRC) RAKE receiver. Finally, the theoretical analysis leads to a simple but novel closed-form expression, for the optimum radio capacity, which can be useful for the practical design of a non-cellular CR system and for an initial quantitative analysis. In addition, numerical results are presented to prove and illustrate the validity of the considered model.
Year
DOI
Venue
2013
10.1145/2491845.2491854
Panhellenic Conference on Informatics
Keywords
Field
DocType
initial quantitative analysis,non-cellular cr system,rayleigh fading system,spread spectrum,radio capacity,primary user,optimum maximal-ratio combiner,spread spectrum non-cellular cognitive,average channel capacity,secondary user,optimum radio capacity,spread spectrum cognitive radio,rayleigh fading,channel capacity,cognitive radio
Radio capacity,Rake receiver,Rayleigh fading,Computer science,Real-time computing,Channel capacity,Maximization,Spread spectrum,Cognitive radio
Conference
Citations 
PageRank 
References 
1
0.39
8
Authors
1
Name
Order
Citations
PageRank
P. Varzakas1366.51