Cross-layer optimization of a CSMA protocol with adaptive modulation for improved energy efficiency in wireless sensor networks

Shu Tao, Haythem A.Bany Salameh, Marwan Krunz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We investigate the energy efficiency in a wireless sensor networks that implements a non-persistent CSMA MAC protocol with adaptive MQAM modulation at the physical layer. The system throughput is estimated based on the number of received ACK packets. The backoff probability at the MAC layer and the modulation order at the physical layer are jointly adapted according to the traffic dynamics, leading to improved system energy efficiency while satisfying a given constraint on the packet retransmission delay. Through numerical examples and simulations, we verify the significant energy-efficiency improvements achieved by this joint optimization compared to the backoff-probability-only and the modulation-order-only adaptations.

Original languageEnglish (US)
Title of host publicationIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
DOIs
StatePublished - Dec 1 2006
EventIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference - San Francisco, CA, United States
Duration: Nov 27 2006Dec 1 2006

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

OtherIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
CountryUnited States
CitySan Francisco, CA
Period11/27/0612/1/06

ASJC Scopus subject areas

  • Engineering(all)

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    Tao, S., Salameh, H. A. B., & Krunz, M. (2006). Cross-layer optimization of a CSMA protocol with adaptive modulation for improved energy efficiency in wireless sensor networks. In IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference [4151586] (GLOBECOM - IEEE Global Telecommunications Conference). https://doi.org/10.1109/GLOCOM.2006.956