A Study of Multiple Access Schemes for Wireless Sensor Network Applications via High Altitude Systems

Author

Yang, Z. ; Mohammed, A.

Author_Institution

Sch. of Eng., Blekinge Inst. of Technol., Ronneby

fYear

2009

fDate

26-29 April 2009

Firstpage

1

Lastpage

5

Abstract

In this paper, we investigate the performance of a multiple access scheme based on orthogonal frequency-division multiplexing (OFDM) in High Altitude Platform (HAP) system for Wireless Sensor Network (WSN) applications. In our study, HAPs are used to replace the traditional gateway deployed on the ground and collect data from sensor nodes. Two scenarios of OFDM schemes with different subcarrier spacing are simulated in Rayleigh and Ricean fading environment. Results show the multiple access scheme based on OFDM for WSN can improve the performance against multipath transmission.

Keywords

OFDM modulation; Rayleigh channels; Rician channels; time-varying channels; wireless sensor networks; Rayleigh fading channel; Ricean fading channel; high altitude systems; multipath transmission; multiple access schemes; orthogonal frequency-division multiplexing; wireless sensor network applications; Acoustic sensors; Artificial satellites; Costs; Fading; IP networks; Mobile communication; OFDM; Satellite broadcasting; Sensor phenomena and characterization; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th

Conference_Location

Barcelona

ISSN

1550-2252

Print_ISBN

978-1-4244-2517-4

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2009.5073348

Filename

5073348