SIC beamforming with antenna selection for aperiodic CDMA signals

Venkataraman, V.; Shynk, J.J.; Gooch, R.P.

doi:10.1109/vetecf.2005.1558409

Cited by 1 publication

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“…, g m (i, R−1)] T . The resulting output is given by 1, Q), r m (i, 1)] in the first row [9]. The minimum-meansquare-error (MMSE) equalizer for the mth antenna element is …”

Section: A Two-stage Equalization and Beamformingmentioning

confidence: 99%

“…However, such an approach generally cannot be directly applied to a long-code system [7], [8]. Downlink equalization has been proposed to combat channel effects that can also be used to compensate for cochannel interference [9], [10], [11]. In a multiple-antenna receiver, the received signal can be processed by an equalizer and a beamformer in two stages, or the equalization can be coupled with the beamformer so that the processing is done jointly.…”

Section: Introductionmentioning

confidence: 99%

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A Multiple Antenna Cyclostationary Receiver for Aperiodic CDMA Signals

Venkataraman

Shynk

Gooch³

Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005.

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In an aperiodic code-division multiple-access (CDMA) system, the spreading sequences are designed to span multiple symbols. Since the spreading sequences are cyclostationary, this property can be exploited to derive channel equalization and interference rejection algorithms. Multiple antenna elements can be coupled with adaptive equalization to offer significant performance gains over that achieved by a similar system with only one antenna. In this paper, we investigate a multiple antenna cyclostationary receiver with a parallel architecture for an aperiodic CDMA signal that converts an aperiodic sequence into piecewise periodic sequences. The performance of the proposed receiver is evaluated for a real downlink aperiodic CDMA signal, and it is compared with that of a conventional matched filter (MF) receiver. The number of correctly decoded paging channel messages is used as the performance measure.

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“…, g m (i, R−1)] T . The resulting output is given by 1, Q), r m (i, 1)] in the first row [9]. The minimum-meansquare-error (MMSE) equalizer for the mth antenna element is …”

Section: A Two-stage Equalization and Beamformingmentioning

confidence: 99%