รูปแบบการติดต่อสื่อสารแบบกระจายศูนย์บนพื้นฐานการแย่งชิงและแบ่งช่วงเวลาการใช้ช่องสัญญาณสำหรับเครือข่ายไร้สายบนร่างกายมนุษย์

Abstract

This research aims to develop a communication protocol for decentralized medium access for Wireless Body Area Networks (WBANs). WBANs is a collection of vital signs and electrical signals measured from body parts to assist the analysis of treatment for patients using wireless data transmission. In this work, experiments have been built to study many parameters which affect to the network performance, the effects of data communication in the real environment and the development of wireless network to be more efficient in terms of saving energy. In this research, the actual experiments are performed using the TelosB motes, a wireless communication node based on the IEEE 802.15.4 standard, to study the effects of an attaching node on the body and improve the communication protocol in the MAC Layer. The combination of two communication protocols which are CSMA/CA and TDMA protocol to provide the network with the better communication capability. The experimental results showed that the Packet inter-arrival time over 15 milliseconds can get the high effective communication and our proposed method can save energy over a wireless communication standard 1.82 times.