Robust Design of Spatial Tomlinson-Harashima Precoding in the Presence of Errors in the CSI

In this letter, we study spatial Tomlinson-Harashima precoding (STHP) from an information theoretic point of view encompassing both the single and the multiuser scenarios. Since the performance of any communications preceding scheme relies on the quality of the channel state information (CSI) that i...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on wireless communications 2007-07, Vol.6 (7), p.2396-2401
Main Authors: Payaro, M., Pascual-Iserte, A., Perez-Neira, A.I., Lagunas, M.A.
Format: Article
Language:English
Subjects:
Allocations
Applied sciences
Channel state information
Channels
Design engineering
Downlink
Errors
Exact sciences and technology
Information analysis
Intersymbol interference
MIMO
Performance analysis
Performance loss
Radiocommunications
Robustness
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Transmitters
Transmitters. Receivers
Wireless communication
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this letter, we study spatial Tomlinson-Harashima precoding (STHP) from an information theoretic point of view encompassing both the single and the multiuser scenarios. Since the performance of any communications preceding scheme relies on the quality of the channel state information (CSI) that is made available at the transmitter side, in this work we focus our attention on the analysis of the robustness of STHP in terms of rate loss when the CSI is imperfect. Precisely, we present a robust design of the set of moduli used in STHP and, consequently, of the corresponding power allocation, that maximizes the achievable rates for the worst-case errors in the CSI in the small errors regime.
ISSN:1536-1276
1558-2248
DOI:10.1109/TWC.2007.05941