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Publication Detailed Description
2007 International Symposium on Communications and Information Technologies
Year (definitive publication)
2007
Language
English
Country
United States of America
More Information
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Abstract
This paper introduces an efficient acquisition/correlation technique for DS-CDMA systems using a frequency-domain approach employing TCH-based training blocks (Tomlison, Cercas and Hughes). The classical time-domain active acquisition technique is compared with the proposed passive matched-filter type frequency domain technique. Moreover using the fact that an N-point discrete Fourier transform (DFT) can be partitioned into M smaller DFTs, we present a procedure for simultaneous decoding/despreading and synchronization that switch between 16 bit-length and 256 bit-length cyclic codes thus providing code rate variability.
Acknowledgements
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Keywords
Discrete fourier transforms,Pseudonoise coded communication,Synchronization,Variable rate codes
Fields of Science and Technology Classification
- Physical Sciences - Natural Sciences
Funding Records
| Funding Reference | Funding Entity |
|---|---|
| PTDC/EEA-TEL/67066/2006 | Fundação para a Ciência e a Tecnologia |
| IST-2005-27423 | C-MOBILE project |
