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Under the guidance
S.Arunmozhi

Submitted by,
V.Mahalakshmy




Introduction

Wavelength division multiplexing
- multiple optical carrier signals of unique wavelengths on a single fiber cable.

Advantages of WDM
-high bandwidth.
-extremely low error rate.
-low signal attenuation.
-More secure.
....etc

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In an effort to make a better wireless network, the Cambridge MA-based company BBN Technologies announced last week that it has built a mesh network that uses significantly less power than traditional wireless networks, such as cellular and Wi-Fi, while achieving comparable data-transfer rates.

The technology, which is being funded by the Defense Advanced Research Projects Agency (DARPA), was developed to create ad hoc communication and surveillance networks on battlefields. But aspects of it are applicable to emergency or remote cell-phone ....etc

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Abstract”
It is well known that the current ad hoc protocol suites do not scale to work efficiently in networks of more than a few hundred nodes. Most current ad hoc routing architectures use flat static addressing and thus, need to keep track of each node individually, creating a massive overhead problem as the network grows. Could dynamic addressing alleviate this problem? In this paper,we argue that the use of dynamic addressing can enable scalable routing in ad hoc networks. We provide an initial design of a routing layer based on d ....etc

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An Interpreter for a subset of scheme ....etc

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In an effort to make a better wireless network, the Cambridge MA-based company BBN Technologies announced last week that it has built a mesh network that uses significantly less power than traditional wireless networks, such as cellular and Wi-Fi, while achieving comparable data-transfer rates. The technology, which is being funded by the Defense Advanced Research Projects Agency (DARPA), was developed to create ad hoc communication and surveillance networks on battlefields. But aspects of it are applicable to emergency or remote cell-phone net ....etc

[:=Read Full Message Here=:]

In an effort to make a better wireless network, the Cambridge MA-based company BBN Technologies announced last week that it has built a mesh network that uses significantly less power than traditional wireless networks, such as cellular and Wi-Fi, while achieving comparable data-transfer rates.

The technology, which is being funded by the Defense Advanced Research Projects Agency (DARPA), was developed to create ad hoc communication and surveillance networks on battlefields. But aspects of it are applicable to emergency or remote cell-phone ....etc

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WIRELESS MESH NETWORKS
Abstract
As various wireless networks evolve into the next generation to provide better services, a key technology, Wireless Mesh Networks (WMNs), has emerged recently. In WMNs, nodes are comprised of mesh routers and mesh clients. Each node operates not only as a host but also as a router, forwarding packets on behalf of other nodes that may not be within direct wireless transmission range of their destinations. A node can send and receive messages, and in a mesh network, a node also functions as a router and c ....etc

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This article is presented by:
Yuyan Xue
Department of Computer Science and Engineering
University Of Nebraska-Lincoln
Security Issues in Wireless Mesh Networks

Characteristics of WMN
Security Challenges in WMNs
Securing WMNs
Conclusion


Difficulties in Providing Security in WMNs

Shared Broadcast Radio Channel
MAC layer Eavesdropping or replay attack
Lack of Association
Authentication
Physical Vulnerability
Mesh ro ....etc

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Guide’s Name:Mr.S.Seeranjeevi

Members name,
Ajith Vishnu.P,
Amith Manikken,
Jubin Jose,
Maheshwaran.E


Abstract

Probabilistic key predistribution schemes (P-KPSs) which place modest demands on hardware are good candidates for securing interactions between resources limited computers.Collusion susceptible P-KPSs are trade-offs between security and complexity.
The contributions of this paper are three-fold:1
A novel P-KPS, the subset keys an ....etc

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