Please use this identifier to cite or link to this item:
http://hdl.handle.net/10071/28177| Author(s): | Almeida, A. P. Dinis, R. Cercas, F. B. |
| Editor: | Miyanaga, Y. |
| Date: | 2007 |
| Title: | An FFT-based acquisition scheme for DS-CDMA systems |
| Book title/volume: | 2007 International Symposium on Communications and Information Technologies |
| Pages: | 905 - 910 |
| Event title: | ISCIT 2007 - 2007 International Symposium on Communications and Information Technologies |
| Reference: | Almeida, A. P., Dinis, R., & Cercas, F. B. (2007). An FFT-based acquisition scheme for DS-CDMA systems. In Y. Miyanaga (Ed.), 2007 International Symposium on Communications and Information Technologies (pp. 905-910). IEEE. https://doi.org/10.1109/ISCIT.2007.4392144 |
| ISBN: | 978-1-4244-0976-1 |
| DOI (Digital Object Identifier): | 10.1109/ISCIT.2007.4392144 |
| Keywords: | Discrete fourier transforms Pseudonoise coded communication Synchronization Variable rate codes |
| 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. |
| Peerreviewed: | yes |
| Access type: | Open Access |
| Appears in Collections: | IT-CRI - Comunicações a conferências internacionais |
Files in This Item:
| File | Size | Format | |
|---|---|---|---|
| conferenceobject_12899.pdf | 561,92 kB | Adobe PDF | View/Open |
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