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Multiple antennas in random code CDMA systems: transmission, detection and spectral efficiency

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3 Author(s)
H. Huang ; Bell Labs., Lucent Technol., Holmdel, NJ, USA ; H. Viswanathan ; G. J. Foschini

We investigate the use of multiple antennas at the transmitter and multiple antennas and multi-user decorrelating detectors at the receivers for providing high-speed data on the downlink of cellular CDMA systems. We analyze the system's spectral efficiency by combining link level bit error rate simulations with system level signal-to-interference ratio simulations. We show that using random spreading codes, a spectral efficiency of 3.8 bits/chip/sector can be achieved using 8 transmit and 12 receive antennas, compared to a spectral efficiency of 0.16 bits/chip/sector for a voice system with single transmit and receive antennas

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Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE

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