A service differentiation mechanism for improving the performance of IEEE 802.15.4 sensor networks

  • Authors:

  • Tae-Yoon Kim;Sungkwan Youm;Eui-Jik Kim;Chul-Hee Kang

  • Affiliations:

  • Department of Electronics Engineering, Korea University, Seoul, Korea;Samsung Electronics Co., LTD, Paldal-gu, Suwon-si, Gyenggi-do, Korea;Samsung Electronics Co., LTD, Paldal-gu, Suwon-si, Gyenggi-do, Korea;Department of Electronics Engineering, Korea University, Seoul, Korea

  • Venue:
  • ISPA'06 Proceedings of the 4th international conference on Parallel and Distributed Processing and Applications
  • Year:
  • 2006

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Abstract

In the sensor networks, each device generates data of different sizes in the home networking and the industrial application according to their roles in the networks. In this paper, we propose a mechanism that provides differentiated services for the IEEE 802.15.4 sensor networks to improve the total throughput and the fairness of the channel. To provide differentiated services for each and every device, our mechanism adds different sizes of backoff period according to the size of packet that is generated by the device. The mathematical model based on the discrete-time Markov chain is presented and is analyzed to measure the performances of the proposed mechanism. Simulation results are also given to verify the accuracy of the analytical model. Finally, the analytical results show the improvement in the throughput and the fairness of the network which applies our mechanism.