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5 - CoMP Schemes Based on Interf.-Aware Transceivers or Interf. Coord.

from Part II - Practical CoMP Schemes

Published online by Cambridge University Press:  05 August 2012

Lars Thiele
Affiliation:
Institute, Berlin
Thomas Wirth
Affiliation:
Institute, Berlin
Malte Schellmann
Affiliation:
European Research Center
Thomas Haustein
Affiliation:
Institute, Berlin
Volker Jungnickel
Affiliation:
Institute, Berlin
Patrick Marsch
Affiliation:
Nokia Siemens Networks, Wroclaw, Poland
Gerhard P. Fettweis
Affiliation:
Technische Universität, Dresden
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Summary

In this chapter, we introduce CoMP schemes where no or little information is exchanged between cooperating base stations. In Section 5.1, we observe an interference-aware downlink transmission scheme where each base station performs individual intra-cell beamforming, while the terminals are able to mitigate inter-cell interference to a certain extent through a particular interference estimation and rejection concept. The level of base station cooperation is then increased in Sections 5.2 and 5.3, where joint multi-cell scheduling and link adaptation, and multi-cell coordinated beamforming are investigated, respectively.

Downlink Multi-User Beamforming with Interference Rejection Combining

In this section, we evaluate a non-cooperative downlink transmission scheme, i.e. where no explicit cooperation takes place between base stations (BSs), but where interference-aware transmission and reception is performed within cells. The BSs perform intra-cell precoding based on limited feedback from the user equipments (UEs), in conjunction with interference-aware scheduling and interference rejection combining (IRC) at the terminal side. This section is based on “Interference-aware scheduling in the synchronous cellular multi-antenna downlink”, by L. Thiele, M. Schellmann, T. Wirth and V. Jungnickel, which appeared in [TSWJ09]. © 2009 IEEE.

Introduction

Transmission with multiple antennas both at the transmitting and receiving ends of a wireless link has become increasingly mature in recent years. From theory, the fundamental capacity gain of the multiple-input multiple-output (MIMO) radio link, being proportional to the minimum of the number of transmit and receive antennas, is well understood for an isolated point-to-point link.

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Coordinated Multi-Point in Mobile Communications
From Theory to Practice
, pp. 41 - 80
Publisher: Cambridge University Press
Print publication year: 2011

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