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Dynamic quantizer design for MIMO systems based on communication rate constraint
Author(s) -
Okajima Hiroshi,
Sawada Kenji,
Matsunaga Nobutomo,
Minami Yuki
Publication year - 2013
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.11396
Subject(s) - mimo , quantization (signal processing) , constraint (computer aided design) , computer science , communications system , vector quantization , control theory (sociology) , algorithm , mathematics , control (management) , artificial intelligence , telecommunications , channel (broadcasting) , geometry
This paper proposes a design method for dynamic quantizers in a MIMO networked control system. It is well known that feedback‐type dynamic quantizers are eective for the quantization of data series in the sense of noise shaping. The dynamic quantizers include a set of a dynamic lter and a static quantizer. When it is required to use the quantizer in network communication, the data size of the signal should be minimized appropriately by the quantizers. We have proposed a design method for dynamic quantizers in a SISO system based on the communication rate constraint. In this paper, the design method is extended to MIMO systems. Using this extension, the communication rate constraint for one type of concentrated system can be handled. In the setting of the quantizer for a MIMO system, bit assignment is an important matter for the appropriate design of information ow. The eectiveness of the proposed design method is shown using numerical examples. © 2013 Wiley Periodicals, Inc. Electron Comm Jpn, 96(5): 28–36, 2013; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/ecj.11396