OFDM systems in the presence of phase noise: consequences and solutions
Songping Wu
Bar-Ness, Y.
Electron. & Comput. Eng. Dept., New Jersey Inst. of Technol., Newark, NJ, USA;
This paper appears in: Communications, IEEE Transactions on
Publication Date: Nov. 2004
Volume: 52,
Issue: 11
On page(s): 1988- 1996
ISSN: 0090-6778
INSPEC Accession Number: 8184485
Digital Object Identifier: 10.1109/TCOMM.2004.836441
Current Version Published: 2004-11-15
Abstract
We provide an exact analysis of orthogonal frequency-division multiplexing (OFDM) performance in the presence of phase noise. Unlike most methods which assume small phase noise, we examine the general case for any phase noise levels. After deriving a closed-form expression for the signal-to-noise-plus-interference ratio (SINR), we exhibit the effects of phase noise by precisely expressing the OFDM system performance as a function of its critical parameters. This helps in understanding the meaning of small phase noise and how it reflects on the proper parameters selection of a specific OFDM system. In order to combat phase noise, we also provide in this paper a general phase-noise suppression scheme, which, by analytical and numerical results, proves to be quite effective in practice.
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