CNR estimation under man-made radio noise environment and its application to noise reduction technique using sector antenna

Author

Miyamoto, Shinichi ; Yoshizawa, Kensuke ; Morinaga, Norihiko

Author_Institution

Dept. of Commun. Eng., Osaka Univ., Japan

Volume

1

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

190

Abstract

Man-made noise emitted from Industrial, Scientific and Medical (ISM) apparatus is known to be one of the major causes of errors in ISM-band wireless Local Area Network (LAN) systems. Although many kinds of countermeasures to improve the performance of ISM-band wireless LAN systems have been proposed, most of these countermeasures are required to estimate the statistical characteristics of man-made noise in advance. In this paper, as the basic parameter characterizing the statistics of of man-made noise the received Carrier to Noise power Ratio (CNR) is employed, we discuss the CNR estimation under man-made noise environment. Moreover, CNR estimation is applied to noise reduction technique using angle diversity reception with sector antenna, and the improvement in bit error rate performance is evaluated

Keywords

diversity reception; interference suppression; radiofrequency interference; wireless LAN; ISM band; angle diversity reception; bit error rate; carrier to noise power ratio; man-made radio noise environment; noise reduction; sector antenna; statistical model; wireless local area network; Bit error rate; Diversity reception; Electromagnetic scattering; Local area networks; Noise reduction; Quadrature phase shift keying; Radio frequency; Signal to noise ratio; Wireless LAN; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1999 Asia Pacific

Print_ISBN

0-7803-5761-2

Type

conf

DOI

10.1109/APMC.1999.828082

Filename

828082