Presentation 2008-03-07
Multi-hop Cooperative Networks and Cognitive Radio
Hidekazu MURATA, Koji YAMAMOTO, Susumu YOSHIDA,
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Abstract(in English) Multi-hop relaying can extend communication range using limited transmit power, and improve the area spectral efficiency. However, it brings considerable degradation of end-to-end error rate performance due to error propagation along the hops. Cooperative relaying, in which multiple stations relay the received signal using transmit diversity techniques, can recover the errors unless all the relay stations do not receive the signal correctly, and improve the end-to-end transmission performance. In this paper, the FER performance of multi-hop cooperative networks is analyzed by using state transition. Theoretical analysis reveals that the FER performance can be kept almost constant, or even improved with increasing the number of the hops. The computer simulation results closely agree with the analysis. And also, it is revealed that this multi-hop cooperative networks is suitable for spectrum sharing because of its good transmission performance and low transmission power.
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Keyword(in English) cognitive radio / spectrum sharing / multihop wireless networks / ad-hoc networks / cooperative relaying
Paper # SR2007-102
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Committee SR
Conference Date 2008/2/28(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Multi-hop Cooperative Networks and Cognitive Radio
Sub Title (in English)
Keyword(1) cognitive radio
Keyword(2) spectrum sharing
Keyword(3) multihop wireless networks
Keyword(4) ad-hoc networks
Keyword(5) cooperative relaying
1st Author's Name Hidekazu MURATA
1st Author's Affiliation Graduate School of Informatics, Kyoto University:Faculty of Engineering, Kyoto University()
2nd Author's Name Koji YAMAMOTO
2nd Author's Affiliation Graduate School of Informatics, Kyoto University:Faculty of Engineering, Kyoto University
3rd Author's Name Susumu YOSHIDA
3rd Author's Affiliation Graduate School of Informatics, Kyoto University:Faculty of Engineering, Kyoto University
Date 2008-03-07
Paper # SR2007-102
Volume (vol) vol.107
Number (no) 519
Page pp.pp.-
#Pages 6
Date of Issue