Networking and Communication Engineering

M. Geetha ¹, G. M. Kadhar Nawaz ¹

Affiliations
1 Department of MCA, Sona College of Technology, Salem–635 301, IN

Abstract

Route selection is essential in everyday life. We have several algorithms for detecting efficient route on Large Road Networks. This paper introduce the hierarchical community, is presented. It splits large road networks into hierarchical structure. It introduces a multi parameter route selection system which employs Fuzzy Logic (FL) and ant’s behavior in nature is applied for the dynamic routing. The important rates of parameters such as path length and traffic are adjustable by the user. The purposes of new hierarchical routing algorithm significantly reduce the search space. We develop a community-based hierarchical graph model that supports Dynamic efficient route computation on large road networks.

Keywords

Hierarchical Community, Traffic Routing, Dynamic Parameters, Fuzzy Logic, Ant-Colony Algorithm.

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J. Nagaraj ¹, G. M. Kadhar Nawaz ²

Affiliations
1 Centre for Computer Applications, Sri Krishna College of Technology, Coimbatore - 42, TamilNadu, IN
2 Department of MCA, Sona College of Technology, Salem, TamilNadu, IN

Abstract

The multipath-rich wireless environment associated with typical wireless usage scenarios is characterized by a fading channel response that is time-varying, location-sensitive, and uniquely shared by a given transmitter-receiver pair. The complexity associated with a richly scattering environment implies that the shortterm fading process is inherently hard to predict and best modeled stochastically, with rapid decorrelation properties in space, time, and frequency. In this paper, we demonstrate how the channel state between a wireless transmitter and receiver can be used as the basis for building practical secret key generation protocols between two entities. We begin by presenting a scheme based on the "Reciprocity based key exchange model" allows two parties jointly establish physically secure key combined with a (standard) computationally secure key, over an insecure communication channel. This key can then be used to encrypt subsequent communications. The channel state between a wireless transmitter and receiver can be used as the basis for building practical secret key generation protocols between two entities. We validate both proposed protocols through experimentations using a customized 802.11a platform, and show for the typical Wi-Fi channel that reliable secret key establishment can be accomplished at rates on the order of 11 b/s.

Keywords

Wireless, Wi-Fi, Cryptography, MOPI.

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S. Veni ¹, G. M. Kadhar Nawaz ², P. Praba ³

Affiliations
1 Department of Computer Applications, Karpagam University, Coimbatore, IN
2 Department of Applications, Sona College of Technology, Salem, IN
3 Department of Computer Science, Karpagam University, Coimbatore, IN

Abstract

Multiprotocol Label Switching (MPLS) is an Internet Engineering Task Force (IETF)-specified framework that provides for the designation, routing, forwarding and switching of traffic flows through the network. MPLS is a versatile solution to address the problems faced by present-day networks-speed, scalability, quality-of-service (QoS) management, and traffic engineering. Constraint-based Routing Label Distribution Protocol (CR-LDP) and  Resource Reservation Protocol  - Traffic Extension(RSVP-TE) are two label distribution protocols that provide support for Traffic Engineering. The operation of two protocols is different although the two protocols provide a similar level of service. The choice of signaling protocol is crucial for the success of MPLS performance.

Keywords

CR-LDP, MPLS, QoS, RSVP-TE.

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