Abstract
A blind scheme for estimating the residual carrier-frequency offset of multiband orthogonal frequency division multiplexing (MB-OFDM)-based ultra-wideband (UWB) systems is proposed. In the MB-OFDM UWB system, time-domain spreading (TDS) is used by transmitting the same information across two adjacent OFDM symbols. By using the TDS structure, the proposed frequency estimation scheme does not require the use of pilot symbols. To demonstrate the usefulness of the proposed estimator, analytical expression of the mean square error is derived and the performance is compared with a conventional pilot-assisted estimator.
| Original language | English |
|---|---|
| Pages (from-to) | 1544-1549 |
| Number of pages | 6 |
| Journal | IET Communications |
| Volume | 5 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2011 Jul 22 |
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
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Kim, J. Y., You, Y. H., & Hwang, T. (2011). Blind frequency-offset tracking scheme for multiband orthogonal frequency division multiplexing using time-domain spreading. IET Communications, 5(11), 1544-1549. https://doi.org/10.1049/iet-com.2010.0631