TITLE:
QoS Aware Routing Protocol to Improve Packet Transmission in Shadow-Fading Environment for Mobile Ad Hoc Networks
AUTHORS:
T. Sangeetha, K. K. Venkatesh Venkatesh, Rajesh, M. S. K. Manikandan
KEYWORDS:
Shadow-Fading Model; Adhoc On Demand Distance Vector Routing (AODV); Backup Routes; Node Disjoint Paths; Link Disjoint Paths; Packet Delivery Ratio (PDR); Quality of Service Aware Routing (QoSAR)
JOURNAL NAME:
Communications and Network,
Vol.5 No.3C,
October
9,
2013
ABSTRACT: In Shadow-Fading model, it is difficult to achieve
higher Packet Delivery Ratio (PDR) due to the effects of large scale fading.
The main goal of this paper is to improve the PDR in Shadow-Fading environment.
To achieve this objective a protocol has been proposed that discovers backup
routes for active sessions. These backup routes salvage the packets of active
session in case of active route failure. It is found by research that
proactively maintaining backup routes for ac-tive sessions can
noticeably improve the PDR in Shadow-Fading environment. This protocol has been
implemented with a mechanism of having backup routes and simulations have been
conducted by using both node disjoint paths and link disjoint paths.
Comparisons have been made between new protocol as well as AODV protocol.
Simulation has been carried out using Network Simulator 2 (NS2) and the results
show that the proposed QoSAR protocol exhibits higher PDR than AODV protocol in
Shadow-fading environment.