Modeling and simulation of a OFDM radio link

Author

Achatz, Robert J.

Author_Institution

Inst. for Telecommun. Sci., Boulder, CO, USA

fYear

1997

fDate

11-13 Aug 1997

Firstpage

234

Lastpage

239

Abstract

This paper describes how a fixed orthogonal frequency division multiplexing (OFDM) radio link operating in a frequency-selective channel has been modeled in a software simulation environment. This model will allow communications engineers to optimize OFDM radio link parameters. The following model parameters are adjustable: (1) number of bits per symbol; (2) number of symbols per OFDM block; (3) number of guard samples; (4) number of virtual carriers; (5) square root raised cosine excess bandwidth; (6) multipath amplitude, phase, and delay; (7) frequency shift; and (8) amplifier backoff. Example results showing OFDM radio link performance in a two-ray multipath channel are discussed

Keywords

delays; digital simulation; frequency division multiplexing; multipath channels; quadrature amplitude modulation; radio links; telecommunication computing; OFDM radio link performance; QAM; amplifier backoff; bits per symbol; delay; frequency shift; frequency-selective channel; guard samples; model parameters; modeling; multipath amplitude; multipath channel; orthogonal frequency division multiplexing; phase; radio link parameters optimisation; software simulation environment; square root raised cosine excess bandwidth; symbols per OFDM block; two-ray multipath channel; virtual carriers; AWGN; Bandwidth; Circuit simulation; Degradation; Filters; Interchannel interference; Niobium; OFDM; Radio link; Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications Conference, 1997., Proceedings

Conference_Location

Boulder, CO

Print_ISBN

0-7803-4194-5

Type

conf

DOI

10.1109/WCC.1997.622285

Filename

622285