A route stability-based multipath QoS routing protocol in cognitive radio ad hoc networks

2019 ◽  
Vol 25 (5) ◽  
pp. 2931-2951 ◽  
Author(s):  
Salman AlQahtani ◽  
Ahemd Alotaibi
Author(s):  
Ahemd M. Alotaibi ◽  
Salman A. AlQahtani

Routing is an important issue in cognitive radio ad hoc networks (CRAHNs) owing to the stochastic activity of primary users (PUs). In particular, route stability remains an important issue in the CRAHN protocols. In this paper, the authors propose a stability-weighted cumulative expected transmission time (SWCETT) routing protocol. The SWCETT routing protocol aims towards providing the most optimal route based on both quality of service (QoS) metrics, such as delay and throughput, and stability of the route in the CRAHN. The performance of the SWCETT routing protocol is determined through simulations and compared with other routing protocols. The proposed routing protocol is capable of providing better delay and throughput than other routing protocols. The results prove the importance of the route stability metric in raising the performance of CRAHNs.


Author(s):  
Priyanka Bharadwaj ◽  
Surjeet Balhara

Background & Objective: There are some challenging issues such as providing Quality of Service (QoS), restricted usage of channels and shared bandwidth pertaining to ad-hoc networks in a dynamic topology. Hence, there is a requirement to support QoS for the application environment and multimedia services in ad-hoc networks with the fast growing and emerging development of information technology. Eventually, bandwidth is one of the key elements to be considered. Methods: Energy aware QoS routing protocol in an ad-hoc network is presented in this article. Results and Conclusion: The simulation results indicate that the improved protocol outperforms Adhoc On-Demand Distance Vector (AODV) routing protocol in terms of QoS metric such as throughput, packet delivery ratio, loss rate and average delay.


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