Presentation 2015/1/15
Experimental Performance Evaluation of Interference Reduction Between Multiple Wireless Systems Exploiting Load Modulation
Takuma ITO, Naoki HONMA, Kentaro NISHIMORI, Yoshitaka TSUNEKAWA,
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Abstract(in English) When secondary system uses the same frequency band in the area of primary system such as television broadcast system which has the primary receiver, interference between the base station of secondary system and primary receiver is important issues because the base station of secondary system cannot estimate interference channel. The authors have proposed the interference suppression method, where the load modulation technique is used to primary receiver, and the base station of secondary system estimates the channel from the primary receiver. This paper presents the experimental results of the effect of interference reduction by our method. In the experiment, PIN diode is used as a load impedance element, and it is possible for primary receiver to load modulation. The measurement results showed that the Signal-to-Interference Ratio (SIR) with interference control at primary receiver side is improved up to on average of 17.0 dB compared to that without interference control. From this experiment, it is found that the interference suppression method using load modulation wave is effective in reducing interference.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Load modulation / frequency sharing / interference control / channel capacity
Paper # A・P2014-168
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Conference Date 2015/1/15(1days)
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Registration To Antennas and Propagation (A・P)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Experimental Performance Evaluation of Interference Reduction Between Multiple Wireless Systems Exploiting Load Modulation
Sub Title (in English)
Keyword(1) Load modulation
Keyword(2) frequency sharing
Keyword(3) interference control
Keyword(4) channel capacity
1st Author's Name Takuma ITO
1st Author's Affiliation Graduate School of Engineering, Iwate University()
2nd Author's Name Naoki HONMA
2nd Author's Affiliation Graduate School of Engineering, Iwate University
3rd Author's Name Kentaro NISHIMORI
3rd Author's Affiliation Graduate School of Science and Technology, Niigata University
4th Author's Name Yoshitaka TSUNEKAWA
4th Author's Affiliation Graduate School of Engineering, Iwate University
Date 2015/1/15
Paper # A・P2014-168
Volume (vol) vol.114
Number (no) 396
Page pp.pp.-
#Pages 6
Date of Issue