Optimization of multilevel power adjustment in wireless sensor networks

Sheng-Tzong Cheng, Mingzoo Wu

研究成果: Conference contribution

2 引文 斯高帕斯(Scopus)

摘要

Restricted to the limited battery power of nodes, energy conservation becomes a critical design issue in wireless sensor networks (WSNs). Transmission with excess power not only reduces the lifetime of sensor nodes, but also introduces immoderate interference in the shared radio channel. It is ideal to transmit packets with just enough power. In this paper, we propose a multilevel power adjustment (MLPA) mechanism for WSNs to prolong the individual node lifetime and the overall network lifetime. The energy conservation is achieved by reducing the average transmission power. The analytical model is built for the MLPA mechanism enabled with k distinct power levels (k-LPA). Under a free space loss (FSL) model, the closed-form expression of optimal power setting is derived and the average transmission power can be minimized as (k + 1)/2k of original fixed power.

原文English
主出版物標題Proceedings
主出版物子標題DMS 2008 - 14th International Conference on Distributed Multimedia Systems
發行者Knowledge Systems Institute Graduate School
頁面106-111
頁數6
ISBN(電子)1891706233
出版狀態Published - 2008 一月 1
事件14th International Conference on Distributed Multimedia Systems, DMS 2008 - Boston, United States
持續時間: 2008 九月 42008 九月 6

出版系列

名字Proceedings: DMS 2008 - 14th International Conference on Distributed Multimedia Systems

Other

Other14th International Conference on Distributed Multimedia Systems, DMS 2008
國家United States
城市Boston
期間08-09-0408-09-06

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Graphics and Computer-Aided Design
  • Human-Computer Interaction

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