Reducing Broadcast Overhead Using Clustering Based Broadcast Mechanism in Mobile Ad Hoc Network

Abstract

Problem statement: Network wide broadcasting is an important function in Mobile AdHoc Networks (MANET), which attempts to deliver packets from a source node to all other nodes in the network. Broadcasting is often very useful for route discovery, naming, addressing and helping multicast operations in all kinds of networks. For designing broadcast protocols for ad hoc networks, one of the primary goal is to reduce the overhead (redundancy, contention and collision) while reaching all the nodes in network. Approach: We had discussed many approaches in network wide broadcasting namely flooding, probability based, area based, network knowledge and cluster based broadcasting methods. The implementations and analysis will be made on Linux using the Network Simulator NS2. Results: In this study, cluster based flooding algorithm had been proposed and its metrics were namely routing load and packet delivery ratio was compared with two common flooding algorithms namely simple flooding and probability based flooding. Conclusion/Recommendations: It was concluded that simple flooding required each node to rebroadcast all packets. Probability based methods used some basic understanding of network topology, assigning a probability to node to rebroadcast. Cluster broadcasting algorithm for mobile ad hoc networks guaranteed to deliver messages from a source node to all nodes of network.

A Hybrid Distance Estimation for Wireless Body Sensor Networks

“…Performance of the proposed BSN scheme is evaluated through NS2 simulations with WBAN PHY/MAC simulation parameters and the applied hardware implementation [19][20][21][22][23][24]. In the simulation and hardware implementation, the network size is 2.5 m * 2.5 m. One WUSB/WBAN host and four WUSB/WBAN bio-sensor nodes with CCA function turned on are deployed into the workspace area.…”

Performance analysis of the impact of broadcast mechanisms in AODV, DSR and DSDV

“…This is known as broadcast storm problem [7] which can lead to a total collapse in the operation of the network. The performance of the Cluster based broadcasting [8] (deterministic) is compared with broadcasting methods such as Simple and Probability flooding (non-deterministic) methods. The new broadcasting method Optimum Density based broadcasting [9] method is proposed for improving the performance of the routing protocol and its performance is compared with the existing broadcasting methods.…”

Improving AODV Performance Using Dynamic Density Driven Route Request Forwarding

“…Significant research activities have focused on reducing flooding in the network [7] [8]. Any procedure that leads to a reduction in congestion saves energy and prolongs the life span of the network.…”