Perfromance Analysis of aTree Routing Protocol for Cognitive Radio Network Under Impact of Different Primary User Activity Patterns. | ||
| International Journal of Intelligent Computing and Information Sciences | ||
| Article 2, Volume 17, Issue 4, October 2017, Pages 19-30 PDF (491.46 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ijicis.2018.7912 | ||
| Authors | ||
| M Hashem* 1; S Barakat* 2; M AttaAlla2 | ||
| 1Department of information Systems, Faculty of Computers and Information Sciences, Ain Shams University, Cairo, Egypt | ||
| 2Department of information Systems, Faculty of Computers and Information Sciences, Mansoura University, Mansoura ,Egypt | ||
| Abstract | ||
| The mistakes in the spectrum management have drive to a problem of the scarcity of spectrum, which can be solved through the use of Cognitive Radio (CR) technology. The main concept of CR technology allows unauthorized users (secondary users (SUs))for using the spectrum resources for communication without harm authorized users (primary users (PUs)).The traditional wireless networks, the nodes are connected based on a centralized infrastructure. But in Cognitive Radio Ad Hoc Network (CRAHN) Networks, mobile SUs nodes are connected to each other without a central infrastructure. Routing in CRAHNs is an important and necessary process in CRAHNs. It faces many and various challenges. These challenges include PUs intervention, frequently dynamic topology, energy consumption problems, unavailable channels, and fragile connections between nodes. The our probased routing protocol called A tree routing protocol for cognitive radio network (C-TRP) has utilized the tree routing algorithm with a spectrum management module in one routing decision module. In this paper, weevalute a performance of the tree routing protocol (C-TRP) under the influence of the different PUs activity patterns with help of three performance metrics :hop count, the number of CR nodes and number of available channels. The performance evaluation is evaluted using NS-2 simulator. Simulation results confirm that C-TRP outperforms “spectrum-tree based on demand routing protocol for multi-hop cognitive radio networks”(STOD-RP), and Cognitive Tree-based Routing(CTBR) in terms of packet delivery ratio and causes less harmful interference to PR nodes, and also less end-to-end delay in all primary radio nodes activity patterns. | ||
| Keywords | ||
| Multi-hop cognitive radio networks; Cognitive radio ad hoc network; spectrum diversity; performance evaluation; CRAHNs | ||
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