A Study on Quality of Service requirements in MANET especially focusing efficient routing procedures

International Journal of Computer Trends and Technology (IJCTT)          
© 2017 by IJCTT Journal
Volume-51 Number-1
Year of Publication : 2017
Authors : Amit Garg, Dr. Ashish Kumar, Dr. Amit Chaturvedi
DOI :  10.14445/22312803/IJCTT-V51P103


Amit Garg, Dr. Ashish Kumar, Dr. Amit Chaturvedi "A Study on Quality of Service requirements in MANET especially focusing efficient routing procedures". International Journal of Computer Trends and Technology (IJCTT) V51(1):25-29, September 2017. ISSN:2231-2803. www.ijcttjournal.org. Published by Seventh Sense Research Group.

Abstract -
To achieve QoS, independently of the routing protocol, each mobile node participating in the network must implement traffic conditioning, traffic marking and buffer management (Random Early Drop with in-out dropping) or queue scheduling (Priority Queuing) schemes. MANET routing protocols can be table-driven or on demand, proactive versus reactive, symmetric versus asymmetric, and unicast versus multicast. It is observed by detailed performance comparison between DSR and AODV that the relative merits of the aggressive use of source routing and caching in DSR, and the more conservative routing table and sequence number driven approach in AODV. AODV outperforms DSR, in terms of throughput and end-to-end delay in more "stressful" situations (higher mobility and higher traffic load). On the other hand, DSR outperforms AODV for low loads (less sources) with small (less than 20) number of nodes. There are two known approaches that utilize routing protocols in order to provide QoS in MANETs. The first one tries to embed end-to-end minimum QoS guarantees (delay, bandwidth) in the computation of the routing algorithm. The routing protocol will request for a connection with a minimum required bandwidth and find the optimum route that can best satisfy that requirement. Core-Extraction Distributed Ad-Hoc Routing (CEDAR) is an example of use of this approach. The second approach is an extension to AODV that takes routing into account to satisfy QoS requirements.

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