Wireless sensor networks can be used by various applications such as surveillance, forest management, weather prediction, Avalanche land-slide prediction, road safety, marine movement control, etc. These applications pose a set of common difficulties. Specifically, in the remote large-scale networks, network topology, security, self-configuration, connectivity, maintenance, power management, time synchronization etc. are major challenges. In this paper we present an overview of issues related of wireless sensor networking. Different aspects of sensor networking are discussed and sensor network architecture is proposed that can satisfactorily overcome these problems.

1. Wireless Sensor Network F.L.Lewis Associate Director for Research Head, Advanced Controls, Sensors, and MEMS Group Automation and Robotics Research Institute The University Of Texas at Arlington
2. A Design For Secure And Survivable Wireless Sensor Networks Yi Qian and Kejie Lu, University of Puerto RICO at Mayaguez David Tipper, University of PITTSBURGH
3. Wireless Sensor Network Design for Tactical Military Application: Remote Large-Scale Environments Sang Hyuk Lee, Soobin Lee, Heecheol Song, and Hwang Soo Lee Department of Electrical Engineering, KAIST Daejeon, South Korea.
4. BioENABLE, available at http://www.bioenabletech.com/technical_introduction_to_gsm_modem_technology.htm
5. Wireless Sensor Networks: Principles and Applications, Chris Townsend, Steven Arms MicroStrain, Inc.
6. Wireless Sensor Networks: From Science to Reality, available at http://www.iaria.org/conferences2007/filesSENSORCOMM07/kay_roemer_sensorcomm.pdf.

Power management QOS Security Time Synchronization WSN