Abstract
A new, reduced complexity algorithm is proposed for compensating the Inter-Carrier Interference (ICI) caused by severe PHase Noise (PHN) and Residual Frequency Offset (RFO) in OFDM systems. The algorithm estimates and compensates the most significant terms of the frequency domain ICI process, which are optimally selected via a Minimum Mean Squared Error (MMSE) criterion. The algorithm requires minimal knowledge of the phase process statistics, the estimation of which is also considered. The scheme outperforms previously proposed compensation methods of similar complexity, when severe phase impairments are present.
Original language | English (US) |
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Article number | 4907430 |
Pages (from-to) | 1614-1619 |
Number of pages | 6 |
Journal | IEEE Transactions on Wireless Communications |
Volume | 8 |
Issue number | 4 |
DOIs | |
State | Published - Apr 1 2009 |
Keywords
- Frequency offset
- Inter-carrier interference
- OFDM
- Phase noise
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics