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Ad-hoc cognitive radio - development to frequency sharing system by using multi-hop network

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2 Author(s)
T. Fujii ; Tokyo Univ. of Agric. & Technol. ; Y. Suzuki

In this paper, we focus on the cognitive radio, which reconfigures the radio transceiver according to the surrounding radio environment. We introduce a development to an ad-hoc cognitive radio that can realize a frequency sharing system under existing communication systems using a multi-hop small power communication. Here, we discuss the surrounding radio environment recognition methods in the distributed terminal cooperated with the media access protocols. In this paper, we present a multi-hop system that autonomously avoids the transmission in the interference area by recognizing the radio environment in each relay node. By using the proposed system, the frequency sharing system with adaptive route selection according to the surrounding radio environment can be realized

Published in:

First IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2005. DySPAN 2005.

Date of Conference:

8-11 Nov. 2005