An empirical study of electromagnetic interference caused by ultra wideband transmissions in an IEEE 802.11a wireless local area network

Author

Raines, R.A. ; Temple, Michael A. ; Baldwin, Rusty O.

fYear

2004

fDate

19-22 Sept. 2004

Firstpage

517

Lastpage

520

Abstract

Military communications require the rapid deployment of mobile high-bandwidth systems. This work characterizes the electromagnetic interference (EMI) effects of ultra wideband (UWB) transmissions on an IEEE 802.11a ad-hoc network throughput performance. Radiated measurements in an anechoic chamber investigate interference performance for three binary modulation schemes including bi-phase shift keying (BPSK), pulse position modulation (PPM), and on-off keying (OOK) and four pulse repetition frequencies (PRF) transmitted over two unlicensed national information infrastructure (U-NII) channels. Results indicate that OOK and BPPM can degrade throughput performance by up to twenty percent at lower PRF and lower U-NII channels. Minimal performance degradation (less than one percent) due to interference is observed for BPSK at the lower PRF and higher U-NII channels.

Keywords

IEEE standards; ad hoc networks; amplitude shift keying; electromagnetic interference; military communication; phase shift keying; pulse position modulation; telecommunication traffic; ultra wideband communication; wireless LAN; BPSK; EMI; IEEE 802.11a; OOK; PPM; PRF; U-NII channels; UWB transmissions; ad-hoc network; bi-phase shift keying; binary modulation; electromagnetic interference; military communications; mobile high-bandwidth systems; on-off keying; pulse position modulation; pulse repetition frequencies; radiated measurements; throughput performance; ultra wideband transmissions; unlicensed national information infrastructure; wireless local area network; Ad hoc networks; Binary phase shift keying; Degradation; Electromagnetic interference; Military communication; Pulse measurements; Pulse modulation; Throughput; Ultra wideband technology; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Conference, 2004 IEEE

Print_ISBN

0-7803-8451-2

Type

conf

DOI

10.1109/RAWCON.2004.1389191

Filename

1389191