High Impact Factor : 4.396 icon | Submit Manuscript Online icon |



K.S.Mohan , SNS College of Technology; M.Udhayamoorthi, SNS College of Technology; D.Sridhar, PPG Institute of Technology; C.senthilkumar, SNS College of Technology


SSDASA algorithm, CRNs, PUs, SUs, Handoff protocol, spectrum switching delay, traffic analysis, licensed user, unlicensed user


The mobile communication users have two types, primary user and secondary user. That communication, to register the users based on bandwidth and priority. The primary user registered in high bandwidth and high priority and also the secondary user registered in low bandwidth and low priority. Those users also called licensed users. The mobile communication used for Cognitive Radio Networks (CRNs). In that mobile communication have some scheduling problem and traffic analysis. Those problems are mainly effected the secondary users. The Spectrum Switching Delay Aware Scheduling Algorithm (SSDASA) and Handoff protocol used to avoid those problems. To formulate a scheduling problem that takes into account different hardware delays experienced by the secondary users (SUs) in a centralized cognitive radio networks (CRNs) while switching to different frequency bands. The simulation results indicate the proposed algorithm is robust to changes in the hardware spectrum switching delay and its performance is very close to its upper bound. To compare the proposed method with the corresponding constant switching delay based algorithm and demonstrate that suggestion of taking into account the different hardware delays while switching to different frequency bands is essential for scheduling in Cognitive Radio Networks.

Other Details

Paper ID: IJSRDV2I9477
Published in: Volume : 2, Issue : 9
Publication Date: 01/12/2014
Page(s): 870-873

Article Preview

Download Article