A Sensor Network Cross-Layer Power Control Algorithm that Incorporates Multiple-Access Interference

Author

Messier, Geoffrey G. ; Hartwell, Jennifer A. ; Davies, Robert J.

Author_Institution

Dept. of Electr. & Comput. Eng., Calgary Univ., Calgary, AB

Volume

7

Issue

8

fYear

2008

fDate

8/1/2008 12:00:00 AM

Firstpage

2877

Lastpage

2883

Abstract

This paper presents a wireless sensor network (WSN) transmit power control algorithm designed to minimize WSN node energy consumption. The algorithm determines transmit power levels using an optimization that accounts for energy consumed by the physical and link layers of the protocol stack. This cross-layer optimization incorporates a physical layer model that uses knowledge of the WSN medium access control (MAC) layer algorithm to accurately model multiple access interference (MAI). Analytical and simulation results show that accounting for MAI in this fashion results in a significant energy savings relative to comparable WSN power control algorithms.

Keywords

access protocols; power control; radiofrequency interference; wireless sensor networks; MAC layer algorithm; medium access control; multiple-access interference; node energy consumption; optimization; protocol stack; sensor network cross-layer power control algorithm; wireless sensor network; Access protocols; Algorithm design and analysis; Automatic repeat request; Energy consumption; Media Access Protocol; Multiple access interference; Physical layer; Power control; Sensor phenomena and characterization; Wireless sensor networks; Wireless sensor networks; crosslayer protocol design; medium access control layer; power control;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2008.070208

Filename

4600197