A Comparison of Modulations for Energy Optimization in Wireless Sensor Network Links

Author

Costa, Felipe M. ; Ochiai, Hideki

Author_Institution

Dept. of Electr. & Comput. Eng., Yokohama Nat. Univ., Yokohama, Japan

fYear

2010

fDate

6-10 Dec. 2010

Firstpage

1

Lastpage

5

Abstract

We study the energy consumption of individual links in wireless sensor networks (WSN). Three widely used digital modulation schemes, i.e. MQAM, MPSK, and MFSK, are analyzed and compared. Both transmitted signal power and circuit power consumptions are considered. For modeling the signal power, we use the relation between channel capacity or cutoff rate and signal to noise ratio (SNR). By numerical calculation, we find the optimized parameters for minimizing the energy consumption per information bit in a point-to-point wireless link.

Keywords

channel capacity; frequency shift keying; optimisation; phase shift keying; quadrature amplitude modulation; radio links; wireless sensor networks; MFSK; MPSK; MQAM; channel capacity; digital modulation; energy consumption; energy optimization; point-to-point wireless link; wireless sensor network links; Energy consumption; Information rates; Modulation; Peer to peer computing; Receivers; Signal to noise ratio; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE

Conference_Location

Miami, FL

ISSN

1930-529X

Print_ISBN

978-1-4244-5636-9

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2010.5683412

Filename

5683412