Abstract
We apply a simple transmit diversity technique to down-link multicarrier CDMA (MC-CDMA) systems. The resulting diversity on each subcarrier improves orthogonality among users, which is distorted by the subcarriers' multipath fading. Accordingly, the diversity suppresses multiuser interference. For equal-gain-combining (EGC) receivers, both theoretical analysis and simulation results show that interference is approximately reduced by half compared to MC-CDMA without space diversity. For the orthogonality-restoring combining (ORC) receiver, simulation results show that it suppresses noise amplification while rejecting multiuser interference.
| Original language | English |
|---|---|
| Pages | 887-889 |
| Number of pages | 3 |
| Publication status | Published - 1 Dec 2000 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Global and Planetary Change
Cite this
Performance of downlink multicarrier CDMA with space diversity. / Li, Y.; Georghiades, C. N.; Huang, Garng Morton.
2000. 887-889.Research output: Contribution to conference › Paper
}
TY - CONF
T1 - Performance of downlink multicarrier CDMA with space diversity
AU - Li, Y.
AU - Georghiades, C. N.
AU - Huang, Garng Morton
PY - 2000/12/1
Y1 - 2000/12/1
N2 - We apply a simple transmit diversity technique to down-link multicarrier CDMA (MC-CDMA) systems. The resulting diversity on each subcarrier improves orthogonality among users, which is distorted by the subcarriers' multipath fading. Accordingly, the diversity suppresses multiuser interference. For equal-gain-combining (EGC) receivers, both theoretical analysis and simulation results show that interference is approximately reduced by half compared to MC-CDMA without space diversity. For the orthogonality-restoring combining (ORC) receiver, simulation results show that it suppresses noise amplification while rejecting multiuser interference.
AB - We apply a simple transmit diversity technique to down-link multicarrier CDMA (MC-CDMA) systems. The resulting diversity on each subcarrier improves orthogonality among users, which is distorted by the subcarriers' multipath fading. Accordingly, the diversity suppresses multiuser interference. For equal-gain-combining (EGC) receivers, both theoretical analysis and simulation results show that interference is approximately reduced by half compared to MC-CDMA without space diversity. For the orthogonality-restoring combining (ORC) receiver, simulation results show that it suppresses noise amplification while rejecting multiuser interference.
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M3 - Paper
SP - 887
EP - 889
ER -