NDLI: Reconfigurable Orthonormal Basis Patterns Using ESPAR Antennas

Content Provider	IEEE Xplore Digital Library
Author	Vasileiou, P.N. Maliatsos, K. Thomatos, E.D. Kanatas, A.G.
Copyright Year	2002
Abstract	Beamspace multiple-input-multiple-output (BS-MIMO) systems with reduced hardware complexity have been recently considered in the literature. So far, BS-MIMO research effort focuses on the development of efficient single-RF MIMO transmission schemes based on parasitic antenna arrays. Single-RF BS-MIMO systems can provide both multiplexing and beamforming capabilities by exploiting the available aerial degrees of freedom of the radiated field while maintaining low space and complexity requirements. Previous studies used electronically steerable passive array radiators (ESPARs) for the multiplexing of multiple data streams utilizing an ESPAR-specific set of orthonormal basis patterns. However, these basis patterns ensure orthogonal transmission of the multiple streams in idealistic rich scattering environments. In this letter, a novel technique is developed for the adaptive selection of the most effective basis patterns in both transmitter and receiver sides based on the actual wireless channel propagation conditions maximizing the system capacity.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	448
Ending Page	451
Page Count	4
File Size	698011
File Format	PDF
ISSN	15361225
Volume Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Receivers Antenna radiation patterns Antenna arrays Vectors reconfigurable basis patterns Beamforming beamspace electronically steerable passive array radiator (ESPAR) antennas multiple-input– multiple-output (MIMO) systems multiplexing
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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