Interference subspace rejection: a framework for multiuser detection in wideband CDMA

Authors:
S. N. Affes;H. Hansen;P. Mermelstein
Affiliations:
INRS-Telecommunications, Quebec Univ., Montreal, Que.;-;-
Venue:
IEEE Journal on Selected Areas in Communications
Year:
2006

Citing 0
Cited 2

Design verification and performance evaluation of an enhanced wideband CDMA receiver using channel measurements

EURASIP Journal on Applied Signal Processing
High capacity downlink transmission with MIMO interference subspace rejection in multicellular CDMA networks

EURASIP Journal on Applied Signal Processing

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Abstract

We present a unifying framework for a new class of receivers that employ linearly-constrained interference cancellation (IC). The associated multiuser detectors operate in various modes and options ranging in performance from that of IC detectors to that of linear receivers, yet provide more attractive performance/complexity tradeoffs. They exploit both space and time diversities as well as the array-processing capabilities of multiple antennas and carry out simultaneous channel and timing estimation, signal combining and interference rejection. Additionally, they can operate on both links and in multiple mixed-rate traffic scenarios. The improved performance can be translated to increased utilization of wideband code division multiple access networks, particularly at high data rates