Effect of co-phasing diversity on CDMA downlink capacity

F Tong; R C Atkinson; I Glover; Stephen R Pennock; Peter R Shepherd

doi:10.1049/el:20080323

Effect of co-phasing diversity on CDMA downlink capacity

F Tong, R C Atkinson, I Glover, Stephen R Pennock, Peter R Shepherd

Department of Electronic & Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The impact of distributed antennas using co-phasing transmission diversity on downlink CDMA channels is examined. An expression is derived that demonstrates that uniform downlink signal-to-interference ratio across users can be achieved by appropriately weighting the distribution of transmit powers across distributed antennas. The capacity of a downlink CDMA system employing distributed antennas with optimum power allocation is then found by simulation.

Original language	English
Pages (from-to)	786-788
Number of pages	3
Journal	Electronics Letters
Volume	44
Issue number	13
DOIs	https://doi.org/10.1049/el:20080323
Publication status	Published - 19 Jun 2008

Keywords

downlink CDMA channels
uniform downlink signal-to-interference ratio
CDMA downlink capacity
co-phasing transmission diversity
optimum power allocation
distributed antennas

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10.1049/el:20080323

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abstract = "The impact of distributed antennas using co-phasing transmission diversity on downlink CDMA channels is examined. An expression is derived that demonstrates that uniform downlink signal-to-interference ratio across users can be achieved by appropriately weighting the distribution of transmit powers across distributed antennas. The capacity of a downlink CDMA system employing distributed antennas with optimum power allocation is then found by simulation.",

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AU - Pennock, Stephen R

AU - Shepherd, Peter R

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AB - The impact of distributed antennas using co-phasing transmission diversity on downlink CDMA channels is examined. An expression is derived that demonstrates that uniform downlink signal-to-interference ratio across users can be achieved by appropriately weighting the distribution of transmit powers across distributed antennas. The capacity of a downlink CDMA system employing distributed antennas with optimum power allocation is then found by simulation.

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KW - uniform downlink signal-to-interference ratio

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KW - co-phasing transmission diversity

KW - optimum power allocation

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Effect of co-phasing diversity on CDMA downlink capacity

Abstract

Keywords

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