Adhoc Wireless NetworksT S Pradeep Kumar!

http://www.nsnam.com

Introduction

a collection of two or more devices equipped with wireless communications and networking capability."

They can communicate within their radio range directly and communicate out of their radio range through intermediate nodes"

Adhoc means "Can take different forms" and "can be mobile, standalone or networked"

Wireless Sensor Networks

Minute in size and storage"

even they are small and take the form of a dust."

helpful in predicting decisions by data fusion"

acoustic, seismic, image, heat, direction, smoke and temperature sensors."

It needs MEMS devices

Wireless Sensor Networks

Challenges "

Device fabrication"

power life conservation"

energy efficient protocols"

distributed computation"

data dissemination "

scalability and security

Traffic Profiles

Peer to peer communication"

communication will be over a period of time or one of the node moves away "

Remote to remote communication"

migration in groups"

hybrid communications"

short, abrupt and un-deterministic communication

Challenges in Adhoc NetworksSpectrum allocation and purchase"

Media Access"

Routing"

Multicasting"

Energy Efficiency"

TCP Performance"

Service Location, Provision and Access"

Security and Privacy