Adjacent channel rejection in OFDM wireless local area networks

Author

Foudazi, G. ; Shafiee, H.

Author_Institution

Dept. of Electr. & Comput. Eng., Tehran Univ.

fYear

0

fDate

0-0 0

Lastpage

4

Abstract

Wireless communication networks are subject to a variety of interference signals, some of which emanate from bands adjacent to the signal of interest. Sidelobe emissions from adjacent band interferers leaks into the bandwidth of the signal of interest. Incomplete removal of frequency components due to the use of non-ideal filters could also cause distortion due to aliasing affects. In this paper, we study the effect of adjacent channel interference on OFDM wireless local area networks (WLAN´s). We propose a transmit equalization approach which provides substantial improvement in interference-dominant channels. Simulation results are obtained for an OFDM communication system whose parameters are selected based on IEEE 802.11a standard for WLAN´s

Keywords

OFDM modulation; adjacent channel interference; equalisers; wireless LAN; IEEE 802.11a standard; OFDM wireless local area networks; WLAN; adjacent band interferers; adjacent channel interference; adjacent channel rejection; aliasing affects; interference signals; interference-dominant channels; sidelobe emissions; transmit equalization; Bandwidth; Communication standards; Filters; Intelligent networks; Interference; OFDM; Transmitters; Wideband; Wireless LAN; Wireless communication; Adjacent Channel Rejection Introduction; OFDM; Wireless LAN´s; frequency offset; interfernce;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Optical Communications Networks, 2006 IFIP International Conference on

Conference_Location

Bangalore

Print_ISBN

1-4244-0340-5

Type

conf

DOI

10.1109/WOCN.2006.1666633

Filename

1666633