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The Impact of Traffic Patterns on the Overhead of Reactive Routing Protocols
 

Summary: 1
The Impact of Traffic Patterns on the
Overhead of Reactive Routing Protocols
Nianjun Zhou, Huaming Wu and Alhussein A. Abouzeid
Dept of Electrical, Computer and Systems Engineering
110 Eighth St, Rensselaer Polytechnic Institute
Troy, New York 12180, USA
email:zhoun@rpi.edu, wuhm@rpi.edu, abouzeid@ecse.rpi.edu
Abstract
This paper presents a new mathematical and simulative framework for quantifying the overhead of reactive
routing protocols, such as DSR and AODV, in wireless variable topology (ad-hoc) networks. A model of the
routing-layer traffic, in terms of the statistical description of the distance between a source and a destination,
is presented. The model is used to study the effect of the traffic on the routing overhead. Two network models
are analyzed; a Manhattan grid model for the case of regular node placement, and a Poisson model for the
case of random node placement. We focus on situations where the nodes are stationary but unreliable. For each
network model, expressions of various components of the routing overhead are derived as a function of the
traffic pattern. Results are compared against ns-2 simulations, which corroborate the essential characteristics of
the analytical results. One of the key insights that can be drawn from the mathematical results of this paper
is that it is possible to design infinitely scalable reactive routing protocols for variable topology networks by
judicious engineering of the traffic patterns to satisfy the conditions presented in this paper.

  

Source: Abouzeid, Alhussein A. - Department of Electrical, Computer and Systems Engineering, Rensselaer Polytechnic Institute

 

Collections: Engineering; Computer Technologies and Information Sciences