International Journal of Advanced Networking and Applications

V. Lalitha ¹, R. S. Rajesh ²

Affiliations
1 Dept. of Computer Science, Govt. Arts College, Pudukkottai, TN, IN
2 Dept. of Computer Science and Engg, M.S. University, Tirunelveli, TN, IN

Abstract

A Mobile Ad Hoc Network is a collection of mobile wireless nodes connected together to form a dynamic network without the need for any fixed infrastructure. This dynamic and unpredictable nature of MANETs requires multi-path routing. In multipath routing multiple paths are established between a source and destination pair of nodes. Multi-path routing provides several benefits such as fault-tolerance, load balancing etc. Transmission power of nodes plays an important role in MANET communication. Now, let us assume that each node can dynamically control the transmission power it uses independently of other nodes. The objective of this work is to study the behavior and performance of the two multi-path MANET routing protocols with respect to different transmission range/power of individual nodes of the network. We have selected Ad Hoc On-Demand Multi-path Distance Vector (AOMDV) Routing Protocol and Multi-path Dynamic Address Routing (MDART) Protocol for this study. We will analyze the impact of increase in transmission range/power of individual nodes on the performance of these multi-path MANET routing protocols.

Keywords

Ad Hoc Network, AOMDV, MANET, MDART, Transmission Range, Transmission Power.

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J. L. Walter Jeyakumar ¹, R. S. Rajesh ¹

Affiliations
1 Department of Computer Science and Engineering, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, IN

Abstract

In this paper, we define a disconnected transaction management scheme for agent based mobile networks. This scheme proposes an environment in which mobile users can have simultaneous access to data by using the cache stored in the Fixed Agent. Data Access Manager module at the Fixed Agent controls the concurrency using invalidation technique. This approach supports disconnected transaction execution by allowing a disconnected mobile host to transfer transaction execution to the Data Access Manager in the fixed agent. The proposed transaction management scheme has been simulated in Java and performance of the scheme is presented.

Keywords

Transaction, Concurrency Control, Mobile Host, Fixed Agent, Cache Invalidation.

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J. Radhakrishnan ¹, R. S. Rajesh ²

Affiliations
1 Department of Computer Science, Vinayaka Missions University, Salem, Tamilnadu, IN
2 Dept. of Computer Science and Engineering, Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, IN

Abstract

This paper describes a Mobile Network Service helps Road Safety Purpose. A preprocessing steps reduces the search space in a safety way. Mobile Network Service applies Safety improvement and Location tracing, a technique that focuses the optimization on critical regions. The result indicates that the Mobile Network Services reliably identifies high quality solutions.

Keywords

Collision, Fixed Stations, Location Tracing, Mobile Nodes, Transceiver.

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B. Ramakrishnan ¹, R. S. Rajesh ², R. S. Shaji ³

Affiliations
1 Department of Computer Science, S.T Hindu College, Nagercoil-02, IN
2 Department of Computer Science and Engineering, Manonmaniam Sundaranar University, Tirunelveli-12, IN
3 Department of Computer Applications, St. Xaviers catholic College of Engineering, Nagercoil, IN

Abstract

VANET is a special class of Mobile Ad hoc Network. VANET is mainly used to model communication in a Vehicular environment where the vehicles are considered as VANET nodes with wireless links. In this paper an attempt has been made to create a new cluster model for efficient communication among the VANET nodes. For this purpose, taking the Simple Highway Vehicular model concept into consideration, a clustering model has been created. The proposed mobility model is called simple highway mobility model(SHWM). This paper focuses on the development of a clustering framework for communication among the VANET nodes. The various timings required for the formation of Clusters, Cluster head election time and Cluster head switching time are computed and presented. The proposed model can be used to characterize the Cluster Based Simple Highway Mobility Model (CBSHWM).

Keywords

VANET, MANET, SHWM, DRSC, OBU, CBVANET and CBSHWM.

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