A SKEWED SLOT SCHEDULING APPROACH FOR REAL - TIME DATA TRANSMISSION IN INDUSTRIAL WIRELESS SENSOR NETWORKS
Journal: International Journal of Engineering Sciences & Research Technology (IJESRT) (Vol.6, No. 3)Publication Date: 2017-03-30
Authors : Md Abul Kalam Azad; Md Abdur Rahman; Amina Khatun;
Page : 516-526
Keywords : H ybrid architecture; monitoring and control; real - time system; reliable transmission; slot scheduling;
Abstract
Improving the data transmission reliability of a time - constraint monitoring and control application in industry is a challenging task. Contemporary solution s are based on either Time Division Multiple Access (TDMA) or the hybrid model of TDMA and Carrier Sense Multiple Access (CSMA). However, most of them are burdened with a complex slot allocation scheme while others are vulnerable to the time varying nature of wireless links. Therefore, we pr opose a skewed slot scheduling approach that maintains a global time constraint in data delivery using a CSMA - base data transmission within a big - slot. All nodes at the same tree depth collectively allocate a big - slot and share it for data transmission rel iability. The new approach is not only simple in design but also highly dependable against dynamically changing network topology. The approach also maximizes data aggregation and filtering, thus improving the balanci ng of energy consumption among sensor no des.
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Last modified: 2017-03-31 19:07:33