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A new concept of baseband radio

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1 Author(s)
Karasawa, Y. ; Univ. of Electro-Commun., Chofu, Japan

Summary form only given. In this presentation, a new wireless communication scheme ??adaptation-to-environment type baseband radio?? which realizes a software radio and/or cognitive radio concept is proposed, and a fundamental experiment is performed to confirm the feasibility of the proposed scheme. The baseband radio discussed here means the scheme which generates a radio wave directly by baseband digital signal processing. Although the transmission scheme proposed as an example is similar to OFDM modulation, a major difference is to radiate the baseband signal directly from an antenna as a real number signal without carrying out an up conversion to radio frequencies. A preliminary experiment for transmitting QPSK and 16QAM signals is carried out. The results show that very flexible error-free transmission can be realized based on the proposed baseband radio.

Published in:

Advanced Technologies for Communications, 2009. ATC '09. International Conference on

Date of Conference:

12-14 Oct. 2009