Low cost wireless system using cots modlue

Abstract

While the security needs of Pakistan are on the rise, the purpose of this project is the design of a Low Cost Wireless System using COTS Module to meet the demanding needs of a soldier. The project is designed to meet specifications that were set to ensure that the Low cost wireless system would be able to operate in a battle zone. Low cost wireless systems are an essential part of modern warfare for better performance and co-ordination of the soldiers. The project accomplishes short-distance wireless communication using ZigBee Technology. Secure and efficient transmission of voice, without compromising on the voice quality is the main aim of project, which is achieved by compression using the MPEG-2.5 Audio Layer III. Analog voice signals received by microphone are converted to a stream of raw data by the built-in ADC which are then converted to mp3 compressed format and using XBee S2, sent over the air wirelessly to the destination where a reverse procedure is applied. This ensures fast and quality transfer of voice while providing the required security and efficiency required by the Pakistan Army.