Indu et al, International Journal of Computer Science and Mobile Computing, Vol.3 Issue.6, June- 2014, pg. 681-685 © 2014, IJCSMC All Rights Reserved 681 Available Online at www.ijcsmc.com International Journal of Computer Science and Mobile Computing A Monthly Journal of Computer Science and Information Technology ISSN 2320–088X IJCSMC, Vol. 3, Issue. 6, June 2014, pg.681 – 685 RESEARCH ARTICLE Wireless Sensor Networks: Issues & Challenges Indu, Sunita Dixit Student, CSE Dept, PDM College of Engg for Women Assistant Professor, PDM College of Engg for Women Indusharma.er@gmail.com, sunita_wengg@pdm.ac.in Abstract: Wireless Sensor Networks (WSN) are highly distributed self organized systems. The basic idea of sensor network is to disperse tiny sensing devices; which are capable of sensing some changes of incidents/parameters and communicating with other devices, spread over a specific geographic area for some specific purposes like environmental monitoring, surveillance, target tracking etc. By combining sensing technology with processing power and wireless communication makes it lucrative for being exploited in abundance in future. The wireless communication technology inclusion also incurs various types of security threats. This paper provides a survey of Issues and challenges related to Wireless Sensor Networks. Keywords: WSN, issues, challenges I. INTRODUCTION Wireless Sensor Networks have recently emerged as a premier research topic. They have great long term economic potential, ability to transform lives, and pose many system-building challenges. Wireless sensor networks also pose a number of new conceptual and optimization problems, such as deployment, location and tracking, are fundamental issues, in that many applications rely on them for needed information. Coverage basically, answers the questions about quality of service (surveillance) that can be provided by a particular sensor network. The integration of several types of sensors such as seismic, optical, acoustic etc. in one network platform and the study of the overall coverage of the system also presents many interesting challenges. With the refinement of energy harvesting techniques that can gather useful energy from blasts of radio energy, vibrations and the like, self-powered circuitry is a real possibility, with networks of millions of nodes, deployed through injections, paintbrushes and aircraft. Also, the introduction of an additional type of sensor node allowing the network to self-organize by embedding adaptive and smart algorithms. While on the other hand, the use of adaptive power control in IP networks that utilizes reactive routing protocols and sleep-mode operation, more powerful mobile agents, QoS (Quality of Service) to guarantee