Mario Hernán Castaneda García

Design of Multiuser Multiantenna Wireless Communication Systems

ISBN:

978-3-8440-3090-7

Series:

Lehrstuhl für Netzwerktheorie und Signalverarbeitung der Technischen Universität München
Herausgeber: Prof. Dr. techn. Josef A. Nossek
München

Keywords:

imperfect CSI; digital feedback; capacity/sum rate lower bound; MMSE beamforming; user selection

Type of publication:

Thesis

Language:

English

Pages:

190 pages

Figures:

46 figures

Weight:

284 g

Format:

21 x 14,8 cm

Bindung:

Paperback

Price:

48,80 € / 61,00 SFr

Published:

October 2014

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Abstract

In this work, limited feedback communication systems with a multi-antenna base station and single antenna users are analyzed. Downlink capacity bounds with channel knowledge subject to estimation, quantization, feedback errors and outdating are derived for the single user case. For the multiuser case, MMSE beamforming and user selection based on the quantized channel direction of the users is presented, along with a lower bound on the achievable sum rate. Threshold-based feedback is also proposed to aid the user selection.