Algorithm Diversity in a Software Antenna

Yoshio KARASAWA  Yukihiro KAMIYA  Takashi INOUE  Satoshi DENNO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E83-B   No.6   pp.1229-1236
Publication Date: 2000/06/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Software Defined Radio and Its Technologies)
Category: 
Keyword: 
software antenna,  algorithm diversity,  reconfigurable antenna,  adaptive antenna,  

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Summary: 
A software antenna, which will be a key device realizing flexible and highly reliable wireless communications systems, is inherently matched with software defined radios (SDR). In this paper, first, key technologies on the software antenna are introduced. The technologies contain i) how to recognize the radio environment, ii) how to determine the optimum adaptive signal processing algorithm, and iii) how to reconfigure the digital beamforming circuit. Then, an image of a software antenna with reconfigurable eigenvector-beamspace configuration is presented. Finally, by assuming various propagation conditions, performance of the software antenna in terms of algorithm diversity is demonstrated.