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Codebook Subsampling and Rearrangement Method for Large Scale MIMO Systems

Authors:
Tianxiao Zhang
Xin Su
Jie Zeng
Limin Xiao
Xibin Xu
Jingyu Li

Keywords: Large scale MIMO; codebook subsampling; codebook rearrangement; PMI feedback

Abstract:
In large scale multiple-input multiple-output (MIMO) systems, the size of codebook increases greatly when transmitters and receivers are equipped with more antennas. Thus, there are demands to select subsets of the codebook for usage to reduce the huge feedback overhead. In this paper, we propose a novel codebook subsampling method using chordal distance of different codewords and deleting them to affordable payload of Physical Uplink Control Channel (PUCCH). Besides, we design a related codebook rearrangement algorithm to mitigate the system performance loss when there are bit errors in the feedback channel.

Pages: 129 to 133

Copyright: Copyright (c) IARIA, 2013

Publication date: March 24, 2013

Published in: conference

ISSN: 2308-4006

ISBN: 978-1-61208-256-1

Location: Lisbon, Portugal

Dates: from March 24, 2013 to March 29, 2013