Abstract
Accurate channel estimates are needed in spacetime coded OFDM systems
for decoding purposes. In this paper, a novel channel tracking algorithm based
on space-time coded training and information symbols is presented. The
algorithm takes advantage of the orthogonality properties of the space-time
block codes and it is therefore capable of providing channel estimates without
performance degradation due to estimation errors from adjacent channels. The
algorithm is tested via Monte Carlo computer simulations using both slowly
Rayleigh fading channels and time-invariant frequency selective channels and
Alamouti space-time block coding. Computer simulations also show that this
simple algorithm outperforms LMS-based approach without additional complexity.
| Original language | English |
|---|---|
| Title of host publication | GLOBECOM '03. IEEE Global Telecommunications Conference |
| Publisher | IEEE Institute of Electrical and Electronic Engineers |
| Pages | 143-147 |
| ISBN (Print) | 978-0-7803-7974-9 |
| DOIs | |
| Publication status | Published - 2003 |
| MoE publication type | A4 Article in a conference publication |
| Event | IEEE Global Telecommunications Conference, GLOBECOM '03 - San Francisco, United States Duration: 1 Dec 2003 → 5 Dec 2003 |
Conference
| Conference | IEEE Global Telecommunications Conference, GLOBECOM '03 |
|---|---|
| Abbreviated title | GLOBECOM '03 |
| Country/Territory | United States |
| City | San Francisco |
| Period | 1/12/03 → 5/12/03 |
Keywords
- channel estimation
- OFDM
- block codes
- estimation error
- testing
- Monte Carlo methods
- Rayleigh channels
- space-time codes
- fading