The effects of phase noise on 26 Mb/s OFDMA broadband radio in the local loop systems

Author

Hasholzner, Ralph ; Drewes, Christian ; Hammerschmidt, Joachim S.

Author_Institution

Inst. for Integrated Circuits, Tech. Univ. Munchen, Germany

fYear

1998

fDate

17-19 Feb 1998

Firstpage

105

Lastpage

112

Abstract

The effects of phase noise on broadband radio in the local loop (BRITL) systems employing orthogonal frequency division multiple access (OFDMA) are assessed analytically and numerically. Phase noise causes a common phase error (CPE) and inter-carrier interferences (ICI). The former is easy to estimate and equalize, since it identically affects all subcarriers. It is shown that neither a significant degradation of the symbol error rate (SER) due to CPE nor a detrimental error floor due to ICI is introduced provided the constant range of the phase noise power spectral density (PSD) of the stabilized oscillator does not exceed 20 kHz. Above that limit, the SER performance is dominated by a prohibitive error floor caused by ICI

Keywords

broadband networks; frequency division multiple access; phase noise; radio networks; radiofrequency interference; subscriber loops; 26 Mbit/s; ICI; OFDMA broadband radio; SER performance; common phase error; degradation; detrimental error floor; equalization; estimation; inter-carrier interferences; local loop systems; orthogonal frequency division multiple access; phase noise; phase noise power spectral density; prohibitive error floor; stabilized oscillator; subcarriers; symbol error rate; Bandwidth; Baseband; Costs; Digital video broadcasting; Error analysis; Fast Fourier transforms; Frequency conversion; Interference; OFDM; Phase noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Broadband Communications, 1998. Accessing, Transmission, Networking. Proceedings. 1998 International Zurich Seminar on

Conference_Location

Zurich

Print_ISBN

0-7803-3893-6

Type

conf

DOI

10.1109/IZSBC.1998.670252

Filename

670252