ICTACT Journal on Communication Technology

Vijayvignesh Selvaraj ¹, A. Pravin Renold ¹

Affiliations
1 TIFAC-CORE in Pervasive Computing Technologies, Velammal Engineering College, IN

Abstract

Wireless Sensor Network (WSN) consists of a number of sensor nodes for monitoring the environment. Scenario like floods, volcanic eruptions, earthquakes, tsunamis, avalanches, hailstorms and blizzards causes the sensor nodes to be damaged. In such worst case scenario, the deployed nodes in the monitoring area may split up into several segments. As a result sensor nodes in the network cannot communicate with each other due to partitions. Our algorithm investigates a strategy for restoring such kind of damage through either placement of Relay Nodes (RN's) or repositioning the existing nodes in the network. Unlike traditional schemes like minimum spanning tree, our proposed approach generates a different topology called as spider web. In this approach, both stationary and mobile relay nodes are used. Thus we are making our topology as a hybrid one. Though the numbers of relay nodes are increased, the robust connectivity and the balanced traffic load can be ensured. The validation of the proposed approach has been simulated and verified by QualNet Developer 5.0.2.

Keywords

Spider Web Topology, k-Connected Relay Nodes, Partitioning, Federation of Disjoint Networks.

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R. Aarthi ¹, A. Pravin Renold ¹

Affiliations
1 TIFAC-CORE in Pervasive Computing Technologies, Velammal Engineering College, IN

Abstract

Vehicle parking is the act of temporarily maneuvering a vehicle in to a certain location. To deal with parking monitoring system issue such as traffic, this paper proposes a vision of improvements in monitoring the vehicles in parking lots based on sensor networks. Most of the existing paper deals with that of the automated parking which is of cluster based and each has its own overheads like high power, less energy efficiency, incompatible size of lots, space. The novel idea in this work is usage of CoAP (Constrained Application Protocol) which is recently created by IETF (draft-ietf-core-coap-18, June 28, 2013), CoRE group to develop RESTful application layer protocol for communications within embedded wireless networks. This paper deals with the enhanced CoAP protocol using multi hop flat topology, which makes the acuters feel soothe towards parking vehicles. We aim to minimize the time consumed for finding free parking lot as well as increase the energy efficiency.

Keywords

Acute Parking Lots, CoAP, Internet of Things, Sensor Networks, Vehicle Monitoring.

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