Adjacent channel interference in an OFDM system

Author

Gudmundson, Mikael ; Anderson, Per-Olof

Author_Institution

Ericsson Radio Syst., Stockholm, Sweden

Volume

2

fYear

1996

Firstpage

918

Abstract

We present expressions for adjacent channel interference calculations for OFDM systems. The expressions presented are general in the sense that they are valid for any kind of transmission window, guard time and symbol time. As two examples the interference expressions are given for rectangular windows and Hanning windows. We also present a method for deriving the interference for a WSSUS channel model. We find that the Hanning window with no guard time reduces the effects of the time and frequency synchronization errors, as well as of the time and Doppler spread, compared to the rectangular window with a guard time of 1/8 of the symbol time

Keywords

Doppler effect; adjacent channel interference; frequency division multiplexing; synchronisation; telecommunication channels; Hanning windows; OFDM system; WSSUS channel model; adjacent channel interference; frequency synchronization errors; guard time; interference expressions; rectangular windows; symbol time; time and Doppler spread; time synchronization errors; transmission window; Digital communication; Doppler shift; Frequency division multiplexing; Frequency synchronization; Interchannel interference; Intersymbol interference; OFDM; Power system modeling; Scattering; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1996. Mobile Technology for the Human Race., IEEE 46th

Conference_Location

Atlanta, GA

ISSN

1090-3038

Print_ISBN

0-7803-3157-5

Type

conf

DOI

10.1109/VETEC.1996.501445

Filename

501445