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http://dx.doi.org/10.1109/JCN.2015.000046

Enhanced TDMA based MAC Protocol for Adaptive Data Control in Wireless Sensor Networks  

Alvi, Ahmad Naseem (Dept. of Electrical Engineering, COMSATS Institute of Information Technology)
Bouk, Safdar Hussain (School of Computer Science and Engineering, Kyungpook National University)
Ahmed, Syed Hassan (School of Computer Science and Engineering, Kyungpook National University)
Yaqub, Muhammad Azfar (School of Computer Science and Engineering, Kyungpook National University)
Javaid, Nadeem (Dept. of Computer Science, COMSAT Institute of Information Technology)
Kim, Dongkyun (School of Computer Science and Engineering, Kyungpook National University)
Publication Information
Journal of Communications and Networks / v.17, no.3, 2015 , pp. 247-255 More about this Journal
Abstract
In this paper, we propose an adaptive time division multiple access based medium access control (MAC) protocol, called bitmap-assisted shortest job first based MAC (BS-MAC), for hierarchical wireless sensor networks (WSNs). The main contribution of BS-MAC is that: (a) It uses small size time slots. (b) The number of those time slots is more than the number of member nodes. (c) Shortest job first (SJF) algorithm to schedule time slots. (d) Short node address (1 byte) to identify members nodes. First two contributions of BS-MAC handle adaptive traffic loads of all members in an efficient manner. The SJF algorithm reduces node's job completion time and to minimize the average packet delay of nodes. The short node address reduces the control overhead and makes the proposed scheme an energy efficient. The simulation results verify that the proposed BS-MAC transmits more data with less delay and energy consumption compared to the existing MAC protocols.
Keywords
Contention free; medium access control (MAC); time division multiple access (TDMA); wireless sensor networks;
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