Informatics Publishing Limited

Abdul Azeez Khan ¹, P. Sheik Abdul Khader ¹

Affiliations
1 Department of Computer Applications, B.S.Abdur Rahman University, Vandalur, Chennai, Tamil Nadu., IN

Abstract

As computer technologies are highly emerged in today's world, leading organizations have digitalized their maximum data transferred in their organization. These leads to digital data maintenance issue as well as issue of retaining the knowledgeable data, which is considered as organization intellectual asset. Organizations are taking higher steps to build knowledge repositories to retain their knowledgeable data on centralized shared storages. The importance of maintaining knowledge repositories to preserve the intellectual capitals has made the institutions to plunge in the ease of creating knowledge repositories for holding institutional intellectual assets. This research contains a novel approach of creating an environment to build knowledge repository for institutions, which provides a mode of capturing the externalized knowledge transferred in the institutions by the stack holders.

Keywords

Knowledge Management, Information Sharing, Tacit Knowledge, Virtual Learning Environment, Knowledge Externalization, Tacit Knowledge, Knowledge Repository

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M.B. Mukesh Krishnan , P. Sheik Abdul Khader

Abstract

Securing Mobile ad hoc net work is a challenging task due to the lack of trust among nodes. In this paper we analysis various trust models for Mobile ad hoc network and then propose a trust evaluation model for mobile ad hoc network which estimating trust level of supplicant nodes by Evaluating and analysis node behavior. This model also designed to detect compromised nodes inside the environment and to isolating the compromised and misbehavior nodes from the network. This model also tested through introducing misbehavior nodes and compromised nodes into the environment and the result shows that the model is highly effective in detecting misbehavior node and compromised nodes over various other security models for Mobile ad hoc network.

Keywords

MANET, Trust, Node Misbehavior, Compromised Node

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Vidhya Sathish ¹, P. Sheik Abdul Khader ¹

Affiliations
1 Department of Computer Applications, B. S. Abdur Rahman University, Chennai, Tamil Nadu, IN

Abstract

The main intention of this paper is to elaborately discuss about seriousness of Botnet problem and project the importance of online malware analysis in Botnet defense research.

Keywords

Botnet, Honeypot, IDS, Malware Analysis, OpenDNS

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G. Ilanchezhiapandian ¹, P. Sheik Abdul Khader ²

Affiliations
1 Sathyabama University, Chennai, IN
2 Department of CA, B.S.Abdur Rahman University, Chennai, IN

Abstract

Mobile ad-hoc network (MANET) is collection of wireless mobile hosts forming a temporary network with out the aid of any standalone infra structure or centralized administration. Mobile ad-hoc network have attributes such as wireless connection continuous changing topology, distributed operation and ease of deployment. Ad-hoc network has emerged as an important trend of future wireless systems that will provide ubiquitous wireless access. In this research we study that performance optimization challenges of ad-hoc network and cross layer processing to improve its performance. We implemented cross layer processing between physical (PHY), medium access control (MAC) and network (NET) layers using network simulator NS-2. The MAC layer adaptively selects a transmition data rate based on the channel signal strength information from the physical layer. The MAC layer utilization is sent to DSR routing protocol as a congestion aware routing metric for optimal route discovery.

Keywords

MANET, MAC, DSR, Cellular Phones, Laptops, and PDAs.

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M. B. Mukesh Krishnan ¹, P. Sheik Abdul Khader ²

Affiliations
1 Sathyabama University, Chennai 600 119, IN
2 Department of Computer Application, B. S. Abdur Rahman University, Vandalur, Chennai-600 048, IN

Abstract

This paper is concerned towards providing trust based authentication key distribution system for mobile ad hoc network (MANET). Traditional authentication key distribution methods cannot be able to adopt for securing the MANET due to infrastructure less nature and lack of trust among nodes. We propose an authentication key distribution scheme for MANET which authenticates a node as well as provide a trust chain among nodes which enables secured and reliable key distribution. This paper also focuses on enhancing co-operation between nodes through trust chain.

Keywords

MANET, Authentication Key, Security, Trust.

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M. Katheeja Parveen ¹, P. Sheik Abdul Khader ², M. Munir Ahamed Rabbani ³

Affiliations
1 Department of Computer Applications, B.S. Abdur Rahman University, Vandalur, Chennai – 48, IN
2 Department of Computer Applications, B.S. Abdur Rahman University, Chennai, IN
3 Department of Computer Applications, B.S. Abdur Rahman University, Chennai – 48, IN

Abstract

RFID unlike barcodes enables simultaneous detection of multiple distant and non-line of sight objects. These characteristics make them exceptional and broaden its scope and utility of RFID systems. Signal transmissions from multiple tags result in tag collisions or confusion causing increase in identification delay, communication overhead and power consumption. In general conventional protocols, utilisation of time slots are in rise, when the tag population increases exponentially. The protocols suggested in recent years follow a “win one – loose other agreement”. Though BT, QT, variants of QT, AQS and ABS who show superiority in minimizing collision, identification delay and transmitting bits, they are no longer memoryless. Cluster Adaptive Memoryless Protocol (CAMP) proposed in this paper takes account of all requirements of a good collision protocol. The grouping procedure and tree construction adopted makes the algorithm to stand apart.

Keywords

Anti Collision, RFID, Passive Tag Identification, Tree Based Algorithm.

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A. Mohamed Abbas ¹, P. Sheik Abdul Khader ², M. Munir Ahamed Rabbani ²

Affiliations
1 Department of Computer Applications, B.S. Abdur Rahman Crescent Engineering College, Vandalur, Chennai-600048, Tamilnadu, IN
2 Department of Computer Applications, B.S. Abdur Rahman Crescent Engineering College, Vandalur, Chennai-600048, Tamilnadu, IN

Abstract

Recently, vehicular networks have begun to attract much attention in industry as well as academia. The IEEE 802.11p is known as Wireless Access in Vehicular Environment (WAVE) to provide the vehicle-to-vehicle and vehicle-to-infrastructure communications. The objective of this paper is to give a study and compare the protocols IEEE 802.11p with IEEE 802.11a. NS2 simulation framework has been developed to evaluate the performance of wireless access technologies and study the packet loss occurred during transmission. Also, this framework is developed to meet the requirements for vehicle to infrastructure communications and it is extended to vehicle to vehicle communications for vehicular ad hoc networks.

Keywords

Dedicated Short Range Communications, Wireless Access in Vehicular Environment, IEEE 802.11p.

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R. Thamizhamuthu ¹, G. Ilanchezhia Pandian ¹, P. Sheik Abdul Khader ¹

Affiliations
1 Department of CA, B.S Abdur Rahman University, Chennai, IN

Abstract

Mobile Ad-hoc Networks (MANETS) operate in highly dynamic environments with limited resources. Due to ever-changing network topology and unreliable wireless channels the performance of the Ad-hoc network is poor. A key challenge is to create a mechanism that can provide good delivery performance and high quality of service in network. The key components of the approach include a cross layer design to improve information sharing between the different protocol layers. In order to improve the performance of MANET, it is planned to implement the cross-layer mechanism from data link layer to the routing layer which can improve the performance of mobile Ad-hoc Network (MANET) routing protocols. It involves allowing the MAC layer of mobile node to learn of the route layer to MAC address mapping of nodes from destination that it receives. This mechanism may improve the reliable transport using the TCP protocol. Simulation of this work is carried out in NS2.

Keywords

MANETS, Cross-Layer, Route Failure.

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P. Chitra ¹, G. Ilanchezhia Pandian ¹, P. Sheik Abdul Khader ¹

Affiliations
1 Department of CA, B.S Abdur Rahman University, Chennai, IN

Abstract

A mobile ad-hoc network (MANET) technology is an autonomous system of mobile routers connected by wireless links. The Adaptive routing for Quality of Service in MANET improves the performance by evaluating the combination of Network layer and MAC layer protocols with transport layer congestion control mechanisms operating in a mobile adhoc network. In IEEE 802.11 and 802.11e with Ad hoc On-Demand Distance Vector (AODV) and Dynamic Source Routing (DSR) algorithms with slow start and Arithmetic Increase and Multiplicative Decrease (AIMD) uses Distributed coordination function (DCF) and Enhanced DCF to improve QoS. In addition, Throughput, Packet delivery ratio, Packet loss, Bandwidth Delay Product will be improved. It is used to carryout the implementation of Cross layer architecture to improve the Quality of Service in MANET by IEEE 802.11 with AODV and DSR protocol using NS2 simulator.

Keywords

A Mobile Ad-hoc Network, WIMAX or WIFI, Wireless Mobile Node.

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A. Abdul Azeez Khan ¹, P. Sheik Abdul Khader ¹

Affiliations
1 Department of Computer Applications, B. S. Abdur Rahman University, Chennai - 600048, Tamil Nadu, IN

Abstract

Objectives: To develop an approach to find one’s expertization level in a given field. Methods/Statistical Analysis: The search engines were utilized to extract the expert’s data available in the internet. The results generated by the search engines were downloaded in the database. Intern these results were used as an input to the relevance and expertise mapping process. We have used Relevance Algorithm and Expertise Mapping Algorithm to process the data generated by the search engines. These process yields one’s expertization level on a particular area. Findings: E-learning systems were automated to identify an expert by using two methods self-classification and document-based-relevance. These methods assume that relevance of one’s specified keywords or documents to the query is positively related to their expertise. In reality, one can be identified as an expert in a specific domain by the contribution made on that particular domain. The expert expertization data available in websites could be utilized by the e-learning systems to evaluate the expert’s. Hence it is proposed to ensure the expertise level of an expert using a Dynamic Expertization Estimating System (DEES) in an e-learning environment. In this approach, search engines were utilized as an agent to extract the expert’s data available in the internet and weightage were given to the expert according to their contribution made by the expert towards the given expertise area. The results retrieved by applying this mechanism yielded data with high accuracy levels to ensure the expertization level of an expert. Application/Improvements: Connecting the Dynamic Expertization Estimating System (DEES) with social media to fetch more data pertaining to the expert expertization and produce accurate expertise level for each expert.

Keywords

E-learning System, Expert Finding, Knowledge Management, Knowledge Sharing, Knowledge Capture, Tacit Knowledge.

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