Name
Title | ||
|---|---|---|
On the use of interference suppression to reduce intermodulation distortion in multicarrier CDMA systems |
Abstract | ||
|---|---|---|
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 |
Year | DOI | Venue |
|---|---|---|
2001 | 10.1109/26.898257 | IEEE Transactions on Communications |
Keywords | Field | DocType |
multiple-access interference,land mobile radio,diversity reception,ds-cdma waveforms,radio transmitters,coded multicarrier direct-sequence code-division multiple-access system,transmitter,minimum mean-squared-error receiver,nonlinear amplifier,frequency diversity,frequency-nonselective channels,signal distortion,channel coherence bandwidth,spread spectrum communication,least mean squares methods,code division multiple access,frequency-selective rayleigh fading channel,interference suppression,interleaved rate 1/m convolutional code,multicarrier cdma systems,intermodulation distortion,rayleigh channels,convolutional codes,interleaved codes,convolutional code,minimum mean square error,coherence,indexing terms,bandwidth,transmitters,fading,nonlinear distortion | Rake,Diversity scheme,Rayleigh fading,Computer science,Coherence bandwidth,Electronic engineering,Intermodulation,Code division multiple access,Distortion,Spread spectrum | Journal |
Volume | Issue | ISSN |
49 | 1 | 0090-6778 |
Citations | PageRank | References |
2 | 0.43 | 7 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Weiping Xu | 1 | 39 | 2.83 |
| L. B. Milstein | 2 | 1670 | 254.06 |