Publications
Copyright information: personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the publisher.
Pilot-assisted time-varying channel estimation for OFDM systems
| Publication type | Journal paper |
|---|---|
| Year of publication | 2007 |
| Authors | Z. Tang, Rocco Claudio Cannizzaro, Geert Leus, and Paolo Banelli |
| Title | Pilot-assisted time-varying channel estimation for OFDM systems |
| Journal title | IEEE Transactions on Signal Processing |
| Volume | 55 |
| Issue | 5 |
| Pages | 2226–2238 |
| Editor | |
| Publisher | IEEE |
| Date | May 2007 |
| Place | |
| ISSN number | 1053-587X |
| ISBN number | |
| Key words | Basis expansion model (BEM), orthogonal frequency-division multiplexing (OFDM), pilot-assisted modulation, time-varying (TV) channels |
| Abstract | In this paper, we deal with channel estimation for orthogonal frequency-division multiplexing (OFDM) systems. The channels are assumed to be time-varying (TV) and approximated by a basis expansion model (BEM). Due to the time-variation, the resulting channel matrix in the frequency domain is no longer diagonal, but approximately banded. Based on this observation, we propose novel channel estimators to combat both the noise and the out-of-band interference. In addition, the effect of a receiver window on channel estimation is also studied. Our claims are supported by simulation results, which are obtained considering Jakes' channels with fairly high Doppler spreads. |
| URL | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4156430&tag=1 |
| DOI | http://dx.doi.org/10.1109/TSP.2007.893198 |
| Other information | |
| Paper |