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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yaning Zou Valkama, M. Renfors, M. |
| Copyright Year | 2008 |
| Description | Author affiliation: Dept. of Commun. Eng., Tampere Univ. of Technol., Tampere (Yaning Zou; Valkama, M.; Renfors, M.) |
| Abstract | The implementation challenges in building compact and low-cost radios for future wireless systems are continuously growing. This is partially due to the introduction of multiantenna transmission techniques, calling for several parallel radio implementations in a single terminal, with considerably reduced implementation resources (size and cost) for individual radios. In this context, one important aspect is the so-called "dirty RF" theme stemming from the unavoidable physical limitations of the used analog electronics. This has started to draw wide attention in both academic and industrial communities. One concrete example is the carrier frequency offset (CFO) problem, caused by frequency instability of the used oscillators and the mobility of the terminals, which can severely degrade the system performance. In this paper, we consider the CFO estimation problem in multi-antenna system context utilizing single-carrier modulation. One efficient pilot based algorithm with built-in diversity against fading channel state is proposed and a lower bound for the estimation error variance is derived analytically. This analysis reveals additional elements for further improving the estimator performance, in terms of pilot structure design. Extensive computer simulations are then used to further assess the estimator performance and to verify the analysis results. |
| Starting Page | 402 |
| Ending Page | 406 |
| File Size | 452296 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424417070 |
| DOI | 10.1109/ICCSC.2008.92 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-05-26 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Radio frequency Degradation Fading Estimation error Costs System performance Frequency estimation Concrete Performance analysis Oscillators |
| Content Type | Text |
| Resource Type | Article |
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