Novel QoS Aware OLSR Protocol for Opportunistic Spectrum Access in Cognitive Radio Ad-Hoc Networks

Author(s): Surjeet Balhara*, Priyanka Bhardwaj.

Journal Name: International Journal of Sensors, Wireless Communications and Control

Volume 8 , Issue 3 , 2018

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Abstract:

Background & Objective: In the design of ad-hoc networks, potential challenge is how to route information reliably and efficiently from one node to another in high level of mobility. Moreover, remaining queuing capacity is also affected on the packet loss. Much research efforts have been consistently done to create protocols that consider minimum bandwidth, better throughput and less average delay. It is widely accepted that only quality of service (QoS) fulfillment can guarantee the requirements in ad-hoc networks and improve the overall network performance.

Conclusion and Results: This paper proposes a QoS-aware optimized link state routing protocol (QOLSR) to enhance data transmission efficiency in cognitive radio ad-hoc networks (CRAHNs). The proposed algorithm utilizes link quality estimation metric and provides best end-to-end paths based on generalization of Dijkstra’s algorithm. We implement two routing algorithms, AODV and OLSR and compare their performance. Simulation is performed using NS-2.35 and the results show that the proposed algorithm outperforms the existing baseline AODV routing algorithm.

Keywords: Ad-hoc Network, cognitive radio, DSA, QOLSR, QoS, routing algorithms.

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Article Details

VOLUME: 8
ISSUE: 3
Year: 2018
Page: [193 - 203]
Pages: 11
DOI: 10.2174/2210327908666180703142759
Price: $58

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