An Insight on Cross-Layer Implementation in Wireless Sensor Networks

Wireless sensor networks are being used in numerous of application in wide range of environments. They are small in size and often operate on batteries. Any WSN can be assessed on the basis of Communication, sensing and computing capability. In this work we present an overview of layered architecture of wireless sensor network protocol stack and focus on the positives of the cross-layer approach. We also go on to review the literature which have presented the usage of the cross layered approach. Performance evaluation of a WSN is still a big issue where plenty of scheme are available which can optimize the performance .We try to present a few guidelines which may help in the development of the optimization techniques.