| Autor: |
Poramate Tarasak, Khiam-Boon Png, Xiaoming Peng, Francois Chin |
| Jazyk: |
angličtina |
| Rok vydání: |
2008 |
| Předmět: |
|
| Zdroj: |
EURASIP Journal on Wireless Communications and Networking, Vol 2008 (2008) |
| Druh dokumentu: |
article |
| ISSN: |
1687-1472 |
| DOI: |
10.1155/2008/541478 |
| Popis: |
This paper addresses cyclic delay diversity (CDD) in an ultra-wideband communication system based on orthogonal frequency division multiplexing (OFDM) technique. Symbol error rate and outage probability have been derived. It is shown that with only two transmit antennas, CDD effectively improves SER performance and reduces outage probability significantly especially when the channel delay spread is short. Both simulation and analytical results agree well in all considered cases. The selection of delay times for CDD is also addressed for some special cases. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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