Referenced Items are not available for this document.
In synchronous DS-CDMA systems, multi-access interference (MAI) due to severe frequency-selective fading degrades the system performance. Based on the frequency domain oversampling (FDO) and minimum mean-square error (MMSE) principle, a novel linear per-user MMSE detector is proposed to approximately restore the orthogonality among the spreading sequences and suppress the MAI. Based on a discussion on the optimal MMSE detector, a low complexity diagonal MMSE detector is proposed with only a slight degradation in performance. It is shown by numerical results that the proposed detector obviously outperforms the conventional linear MMSE detector in severe MAI environment.
Published in:
Information, Communications and Signal Processing, 2009. ICICS 2009. 7th International Conference on
Date of Conference: 8-10 Dec. 2009
- Page(s):
- 1 - 5
- E-ISBN :
- 978-1-4244-4657-5
- Print ISBN:
- 978-1-4244-4656-8
- INSPEC Accession Number:
- 11134759
- Conference Location :
- Macau
- Digital Object Identifier :
- 10.1109/ICICS.2009.5397647
- Product Type:
- Conference Publications
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