Interference mitigation in orthogonal frequency division multiplexing (OFDM)

Author

Lowdermilk, Robert W. ; Harris, Fredric J.

Author_Institution

Adv. Dev. Operations, Lockheed Martin Corp., San Diego, CA, USA

Volume

2

fYear

1996

fDate

29 Sep-2 Oct 1996

Firstpage

623

Abstract

Orthogonal frequency division multiplexing (OFDM) is a modulation scheme purported to be insensitive to the multipath effects of a mobile communication channel as well as exhibiting immunity to narrow-band interference via hole punching in the OFDM spectrum. We examine and verify the OFDM bit error rate sensitivity to low level interference and introduce and demonstrate a spectrum spreading technique to reduce the effect of the narrow-band interferer

Keywords

coding errors; demodulation; error statistics; frequency division multiplexing; interference suppression; land mobile radio; modulation; multipath channels; radiofrequency interference; OFDM spectrum; bit error rate sensitivity; hole punching; interference mitigation; interference suppression; low level interference; mobile communication channel; modulation; multipath effects; narrowband interference immunity; orthogonal frequency division multiplexing; spectrum spreading technique; Bit error rate; Demodulation; Fast Fourier transforms; Frequency domain analysis; Interference; Narrowband; OFDM modulation; Pulse modulation; Pulse shaping methods; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Universal Personal Communications, 1996. Record., 1996 5th IEEE International Conference on

Conference_Location

Cambridge, MA

Print_ISBN

0-7803-3300-4

Type

conf

DOI

10.1109/ICUPC.1996.562648

Filename

562648