Moderate Quality of Voice Data Transmission over Zigbee with Security

Abstract

This paper proposes an integrated approach towards Transmission of moderate Quality of Voice Data through Zigbee. Here Zigbee technology is used because it provides seamless(smooth, continuous with no interruption) addressable connectivity (IP based), simple and low cost wireless communication and networking solution for low data rate and for those applications which consumes low power. These prototypes have complex/large circuitry and because of this these become very expensive. In near future everything will be network connected, so we need a IP based voice enabled platform for communication purpose and with high performance for defense, physically handicapped. At present there are wireless embedded devices but not voice enabled (remote controlled are there), if so then there are not centralized server. Because of this, the costs of these types of devices are very high. Main objective of this thesis is to develop a communication system in WSN over Zigbee between two nodes and encryption algorithm at transmitter side for security of data in the air(medium), and also to reduce equipment cost as well as communication cost with some sort of compromising the data, that can work even with low power micro-controller.