Performance comparison of OFDM and multitone with polyphase filter bank for wireless communications

Author

Rhee, Wonjong ; Chuang, Justin C. ; Cimini, Leonard J., Jr.

Author_Institution

Inf. Syst. Lab., Stanford Univ., CA, USA

Volume

2

fYear

1998

fDate

18-21 May 1998

Firstpage

768

Abstract

We present a performance comparison of two multicarrier modulation schemes (Bingham 1990), orthogonal frequency division multiplexing (OFDM) (Cimini Jr., 1985) and multitone with polyphase filter bank (MPFB), in the presence of frequency offset and delay spread. The bit error rate (BER) for the two systems in an additive white Gaussian noise (AWGN) channel and a two-ray Rayleigh fading channel is evaluated by computer simulation. It is shown that the sensitivity to frequency offset can be reduced by MPFB at the expense of larger bandwidth and higher complexity. It is also shown that the MPFB implementation is very sensitive to large delay spread

Keywords

AWGN channels; OFDM modulation; Rayleigh channels; cellular radio; channel bank filters; error statistics; AWGN channel; OFDM; additive white Gaussian noise channel; bandwidth; bit error rate; complexity; delay spread; frequency offset; multicarrier modulation; multitone with polyphase filter bank; orthogonal frequency division multiplexing; performance comparison; two-ray Rayleigh fading channel; wireless communications; AWGN; Bandwidth; Bit error rate; Delay; Filter bank; Interference; OFDM modulation; Robustness; Timing; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1998. VTC 98. 48th IEEE

Conference_Location

Ottawa, Ont.

ISSN

1090-3038

Print_ISBN

0-7803-4320-4

Type

conf

DOI

10.1109/VETEC.1998.683685

Filename

683685