Learn More
² in cognitive radio (CR), CR users or also known as secondary users (SUs) are considered DV³YLVLWRUV´WRWKHlicensed spectrum. During the case when the primary user claims the band of the spectrum that is occupied by the SU WKH 68 ¶V ongoing call must be transferred to another unused spectrum band. The variation in spectrum band is called spectrum mobility.(More)
In cognitive radio networks, the secondary users (SUs) switch the data transmission to another empty spectrum band to give priority to primary users (PUs). In this paper, channel switching in cognitive radio mobile ad hoc networks (CR-MANETs) through an established route is modeled. The probability of channel availability in this route is calculated based(More)
The Cognitive Radio (CR) can delivers the environment to Secondary Users (SUs) of Wireless Mesh Network (WMN) to utilize unused spectrum of Primary Users (PUs) opportunistically. The CR can improve the spectrum usage of the WMN. However, this rises the some additional complexities for the SUs such as spectrum heterogeneity, unpredictable PU activity and(More)
  • 1