Energy aware data gathering based on adaptive modulation scaling in wireless sensor networks

Zong Kai Yang, Yong Yuan, Jianhua He

Research output: Contribution to journalConference article

8 Citations (Scopus)

Abstract

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 paper, we study the problem of modulation scaling and energy-optimization. A mathematical model is proposed to analyze the impact of modulation scaling on the overall energy consumption, end-to-end mean delivery latency and mean packet loss rate. 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.

Original languageEnglish
Pages (from-to)2794-2798
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume60
Issue number4
DOIs
Publication statusPublished - 2004
Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
Duration: 26 Sep 200429 Sep 2004

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Keywords

  • Energy efficient design
  • Wireless sensor network; adaptive modulation scaling

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