Presentation 1999/3/8
Improved Performance of BER with Punctured Turbo Codes and Pilot Symbols on Fast Fading Channels
Mikihiko TAKAGI, Yukitoshi SANADA, Jun-ichi TAKADA, Kiyomichi ARAKI,
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Abstract(in English) In this paper, we improved the degraded performance of BER caused by the increase of maximum Doppler frequency on mobile radio communication systems. When the mobile station is moving fast, then maximum Doppler frequency increases; as a result channel estimation will be failed. So, here we apply punctured Turbo Codes, and replace some parity bits of Turbo Codes with Pilot symbols. In this scheme, performance improvement is realized without decrease of data rate. Thus we get better performance of BER, by decreasing the interval of Pilot symbols and robustness for puncturing on Turbo Codes. We conducted computer simulation, in case maximum Doppler frequency is 5Hz500Hz. We show the effectiveness of this method in improving BER performance, when fD>200Hz.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Turbo-codes / Puncture / Pilot symbols / Coherent Detection / Channel estimation / Rayleigh fading channels
Paper # DSP98-178
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Conference Information
Committee DSP
Conference Date 1999/3/8(1days)
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Paper Information
Registration To Digital Signal Processing (DSP)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Improved Performance of BER with Punctured Turbo Codes and Pilot Symbols on Fast Fading Channels
Sub Title (in English)
Keyword(1) Turbo-codes
Keyword(2) Puncture
Keyword(3) Pilot symbols
Keyword(4) Coherent Detection
Keyword(5) Channel estimation
Keyword(6) Rayleigh fading channels
1st Author's Name Mikihiko TAKAGI
1st Author's Affiliation Graduate School of Science and Eng. Tokyo Institute of Technology()
2nd Author's Name Yukitoshi SANADA
2nd Author's Affiliation Dept.of Elec.Eng. Tokyo Institute of Technology
3rd Author's Name Jun-ichi TAKADA
3rd Author's Affiliation INCOCSAT Tokyo Institute of Technology
4th Author's Name Kiyomichi ARAKI
4th Author's Affiliation Dept. of Computer Science Tokyo Institute of Technology
Date 1999/3/8
Paper # DSP98-178
Volume (vol) vol.98
Number (no) 648
Page pp.pp.-
#Pages 6
Date of Issue