Analytical Simulation and Performance Optimization for Spectrum Sensing in Cognitive Radio Networks
Journal Title: International Journal on Computer Science and Engineering - Year 2011, Vol 3, Issue 2
Abstract
Dynamic spectrum allocation (DSA) solutions such as cognitive radio networks (CRNs) have been proposed as a key technology to exploit the frequency segments that are spectrally underutilized. In this paper, the performance of cooperative CRNs has been analyzed under two different operational modes, namely, constant primary user protection (CPUP) and constant secondary user spectrum usability (CSUSU). The CRN performance metrics have been selected to be the overall CRN capacity and the overall interference from CRN to the primary users under CPUP and CSUSU scenario, respectively. Computer simulations are invoked to evaluate the CRN performance with varying the sensing time as well as the number of cooperating users in the network and the observations have been presented. Finally, particle swarm optimization algorithm has been used to jointly optimize the sensing time duration and cooperation level of spectrum sensing in CRNs. The simulation results show that the CRN performance can be noticeably improved by applying suitable optimization algorithms.
Authors and Affiliations
Ayman A. El-Saleh , Mahamod Ismail , Mohd Alauddin Mohd Ali1 , M. R. Kamarudin , T. A. Rahman
Keywords
Related Articles
- EP ID EP139762
- DOI -
- Views 114
- Downloads 0
A Framework for an Ontology-Based Data- Gleaning and Agent Based Intelligent Decision Support PPDM System Employing Generalization Technique for Health Care
The obligatory to anticipate the privacy benefits of heavy ownpour of monsoon rain from the firmament clouds of Privacy Preserving Data Mining (PPDM) Techniques have recently grown leaps and bounds. The desiccated users...
UEP based on Proximity Pilot Subcarriers with QAM in OFDM
A novel UEP (Unequal Error Protection) method is proposed that utilizes the subcarrier positions relative to pilot subcarriers in an OFDM multicarrier frame along with QAM (Quadrature Amplitude Modulation) schemes. With...
Multivariable H Robust Controller for a Permanent Magnet Synchronous Machine (PMSM)
Analytical modeling of the PMSM often involves many simplifying assumptions. The model thus obtained is a model where the physical phenomena and dynamics are neglected during the identification of the process such that t...
Analysis of DDoS Attack Effect and Protection Scheme in Wireless Mobile Ad-hoc Network
In Wireless mobile Ad Hoc Networks (MANET) every node functions as transmitter, router and data sink is network without infrastructure. Detecting malicious nodes in an open ad-hoc network in which participating nodes hav...
Next Generation High Speed Computing Using Photonic Based Technology
In the present era of technology computer has facilitated the human life up to a great extent. The speed of computation has raised to astonish level but the pace of development of other technologies which have core depen...