Research Article Open Access

An Adaptive Modulation Scaling Scheme for Quality of Services Ensurance in Wireless Sensor Netwoks

Yong Yuan1, Zongkai Yang1 and Jianhua He2
  • 1 Department of Electronics and Information, Huazhong University of Science and Technology Wuhan, China
  • 2 Department of Electrical and Electronic Engineering, University of Bristol Bristol, United Kingdom


Energy consumption has been a key concern of data gathering in wireless sensor networks. Previous research works show that modulation scaling is an efficient technique to reduce energy consumption. However, such technique will also impact on both packet delivery latency and packet loss, therefore, may result in adverse effects on the qualities of applications. In this study, the problem of modulation scaling and energy optimization is discussed. A mathematical model is proposed to analyze the impact of modulation scaling on the overall energy consumption, end-to-end mean delivery latency and packet loss. A centralized optimal management mechanism is developed based on the model, which adaptively adjusts the modulation levels to minimize energy consumption while ensuring the QoS for data gathering. Experimental results show that the management mechanism saves significant energy in all the investigated scenarios. Some valuable results are also observed in the experiments.

American Journal of Applied Sciences
Volume 2 No. 3, 2005, 734-738


Submitted On: 2 February 2006 Published On: 31 March 2005

How to Cite: Yuan, Y., Yang, Z. & He, J. (2005). An Adaptive Modulation Scaling Scheme for Quality of Services Ensurance in Wireless Sensor Netwoks. American Journal of Applied Sciences, 2(3), 734-738.

  • 2 Citations



  • Wireless Sensor Network
  • Adaptive Modulation Scaling
  • Energy Aware Protocol Design