Multi-element adaptive arrays for interference mitigation of multiple barker/CCK signals in 802.11b WLANs

Author

Al-Banna, Ayham Z. ; LoCicero, Joseph L. ; Ucci, Donald R.

Author_Institution

ECE Dept., Illinois Inst. of Technol. Chicago, Chicago, IL

fYear

2007

fDate

April 30 2007-May 2 2007

Firstpage

1

Lastpage

5

Abstract

We analyze interference in the unlicensed ISM wireless band for IEEE 802.11 barker-code spread and Complementary Code Keying spread Wireless Fidelity signals and contrast the results to that of narrowband interferers. Multi-element adaptive antennas with tapped-delay-lines are used to mitigate multiple interferers. It is shown that the number of delay line taps required to successfully mitigate the effect of multiple interferers increases as the number of interferers and array elements increases.

Keywords

adaptive antenna arrays; codes; radiofrequency interference; wireless LAN; IEEE 802.11 Barker-code spread; adaptive multielement antennas arrays; complementary code keying spread wireless fidelity signals; interference mitigation; multiple interferers; narrowband interferers; tapped-delay-lines; unlicensed ISM wireless band; wireless local area networks; Adaptive arrays; Delay lines; Interference; Least squares approximation; Narrowband; Signal analysis; Signal to noise ratio; Throughput; USA Councils; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Sarnoff Symposium, 2007 IEEE

Conference_Location

Nassau Inn, Princeton, NJ

Print_ISBN

978-1-4244-2483-2

Type

conf

DOI

10.1109/SARNOF.2007.4567385

Filename

4567385