Referenced Items are not available for this document.
This paper presents a coded multicarrier direct-sequence code-division multiple-access (DS-CDMA) system that, by the use of a minimum mean-squared-error receiver, achieves frequency diversity (instead of path diversity as in a conventional single-carrier RAKE DS-CDMA) and has the ability to suppress the intermodulation distortion and partially compensate for the signal distortion introduced by a nonlinear amplifier at the transmitter. A frequency-selective Rayleigh fading channel is decomposed into M frequency-nonselective channels, based on the channel coherence bandwidth. A rate 1/M convolutional code, after being interleaved, is used to modulate M different DS-CDMA waveforms. The new system is shown to effectively combat intermodulation distortion in the presence of multiple-access interference
Published in:
Communications, IEEE Transactions on
(Volume:49
,
Issue:
1
)
Date of Publication: Jan 2001
- Page(s):
- 130 - 141
- ISSN :
- 0090-6778
- INSPEC Accession Number:
- 6842741
- Digital Object Identifier :
- 10.1109/26.898257
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 07 August 2002
- Issue Date :
- Jan 2001
- Sponsored by :
- IEEE Communications Society
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