Adaptive TDMA Scheduling for Real-Time Flows in Cluster-BasedWireless Sensor Networks

Gohar Ali1, Kyong Hoon Kim2 and Ki-Il Kim2

  1. Sur University College
    Oman
  2. Department of Aerospace and Software Engineering, Research Center for Aerospace Parts Technology
    Gyeongsang National University, Jinju-Dearo 501, Korea, 52828
    kikim@gnu.ac.kr

Abstract

To prevent scalability problem caused by increasing traffic of real-time applications, cluster architecture with Time Division Multiple Access (TDMA) scheduling scheme is mostly deployed in wireless sensor networks. However, even though it have proven good scalability and suitability for real-time communications, but static scheduling lacks of adaptability in several situations by not admitting some real-time flows where slots remain available. To solve mentioned problem, in this paper, we propose an adaptive cluster-based scheduling scheme for real-time flows by utilizing the time slots for flows according to type of flows such as inside or outside cluster. So, the proposed scheme can achieve better utilization of channel by minimizing the number of unused channels for real-time flows than static scheme through new adaptive TDMA scheduling scheme . Simulation results show that more flows are admitted and delivered within the deadline in the proposed scheme by utilizing unused time slots accordingly.

Key words

real-time, cluster, TDMA, scheduling, wireless sensor networks

Digital Object Identifier (DOI)

https://doi.org/10.2298/CSIS150401005G

Publication information

Volume 13, Issue 2 (June 2016)
Year of Publication: 2016
ISSN: 1820-0214 (Print) 2406-1018 (Online)
Publisher: ComSIS Consortium

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How to cite

Ali, G., Kim, K. H., Kim, K.: Adaptive TDMA Scheduling for Real-Time Flows in Cluster-BasedWireless Sensor Networks. Computer Science and Information Systems, Vol. 13, No. 2, 475–492. (2016)