Informatics Publishing Limited

P. K. Singh ¹, Narendra Pal Singh ¹

Affiliations
1 Department of Computer Science & Engineering, Madan Mohan Malaviya Engineering College, Gorakhpur- 273010, IN

Abstract

Recently, wireless sensor networks have attracted a lot of attention. Such environments may consist of many inexpensive nodes, each capable of collecting, storing, and processing environmental information and communicating with neighboring nodes through wireless links. In this paper, we survey a fundamental problem in wireless sensor networks, the coverage problem, which reflects how well an area is monitored or tracked by sensors. We first study several relevant computational geometric problems. Then, a number of papers aimed at solving the coverage problem in wireless sensor networks are discussed. We will address issues such as surveillance and exposure of sensor networks, coverage and connectivity in network deployment, and coverage and energy-preserving protocols for sensor networks.

Keywords

Wireless Sensor Networks, Coverage Problem, Sensor Node, Sensor, Node Localization.

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P. K. Singh ¹, Narendra Pal Singh ¹

Affiliations
1 Department of Computer Science and Engineering, Madan Mohan Malaviya Engineering College, Gorakhpur-273010, IN

Abstract

Security is an essential part of wired and wireless network communication. Interestingly enough, these systems are designed to provide to open access across vast networked environments. Today's technologies are usually networkoperation- intrusive, i.e. they often limit connectivity and inhibit easier access to data and services. With the increasing popularity of wireless network, the security issue for end users could be even more serious then we expect. In wireless communication technology, a new networking technique, Ad-hoc wireless sensor network is currently under research. It has drawn much attention from researchers and user in recent years because it provides several application scopes for users and major challenges for researchers. Technical publications and conferences basically focusing on WSN technology and applications are commonplace. Research, development, and manufacturing of these networks are thriving. Many applications for WSNs have been proposed, but few are operational and many technical issues about WSNs remain to be solved by researchers. In this paper we present a summary on the security mechanisms issues and problems of current WSN technology. Of primary importance, the security issues facing WSNs are many and varied.

Keywords

Ad-Hoc Network, Wireless Network, Sensor Node, Routing, Security, Attack.

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