Power adaptation in multi-hop sensor networks for energy minimization

Hongbing Cheng, Yu Dong Yao

Research output: Contribution to conferencePaperpeer-review

Abstract

The power adaptation issue for multi-hop sensor networks is considered in this paper to minimize the energy consumption with a given requirement of the average end-toend bit error rate (BER) performance. To optimize the power adaptation, a nonlinear programming problem is formulated and an analytical result is derived from its Karush-Kuhb-Tucker (KKT) necessary conditions. Numerical examples are presented to compare the networks with the proposed power adaptation scheme and a distributed power adaptation scheme, in which the transmitter of each individual hop adjusts its transmission power based on its own channel state information (CSI) and a specified BER requirement for this hop. A significant energy saving is achieved with the use of the proposed scheme.

Original languageEnglish
Pages112-116
Number of pages5
DOIs
StatePublished - 2009
Event5th International Conference on Mobile Ad-hoc and Sensor Networks, MSN 2009 - Fujian Province, China
Duration: 14 Dec 200916 Dec 2009

Conference

Conference5th International Conference on Mobile Ad-hoc and Sensor Networks, MSN 2009
Country/TerritoryChina
CityFujian Province
Period14/12/0916/12/09

Keywords

  • End-to-end BER
  • Multi-hop networks
  • Optimization
  • Power adaptation

Fingerprint

Dive into the research topics of 'Power adaptation in multi-hop sensor networks for energy minimization'. Together they form a unique fingerprint.

Cite this