Precoding in multiantenna and multiuser communications

In this paper, Tomlinson-Harashima Precoding for multiple-input/multiple-output systems including multiple-antenna and multiuser systems is studied. It is shown that nonlinear preequalization offers significant advantages over linear preequalization which increases average transmit power. Moreover,...

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Bibliographic Details
Published in:IEEE transactions on wireless communications 2004-07, Vol.3 (4), p.1305-1316
Main Authors: Windpassinger, C., Fischer, R.F.H., Vencel, T., Huber, J.B.
Format: Article
Language:English
Subjects:
Applied sciences
Asymptotic properties
Channels
Decision feedback equalizers
Detection, estimation, filtering, equalization, prediction
Direct-sequence code-division multiple access
Equalization
Exact sciences and technology
Gallium nitride
Information, signal and communications theory
MIMO
Multiaccess communication
Multiuser detection
Nonlinearity
Optimization
Receivers
Receiving antennas
Signal and communications theory
Signal to noise ratio
Signal, noise
Stress concentration
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Transmitters
Wireless communication
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Summary:In this paper, Tomlinson-Harashima Precoding for multiple-input/multiple-output systems including multiple-antenna and multiuser systems is studied. It is shown that nonlinear preequalization offers significant advantages over linear preequalization which increases average transmit power. Moreover, it outperforms decision-feedback equalization at the receiver side which is applicable if joint processing at the receiver side is possible, and which suffers from error propagation. A number of aspects of practical importance are studied. Loading, i.e., the optimum distribution of transmit power and rate is discussed in detail. It is shown that the capacity of the underlying MIMO channel can be utilized asymptotically by means of nonlinear precoding.
ISSN:1536-1276
1558-2248
DOI:10.1109/TWC.2004.830852