Presentation | 2003/1/8 A Generalization of Differentially Encoded Transmit Time Diversity and Its Blind Demodulation Techniques Hiroshi KUBO, Akihiro OKAZAKI, Keishi MURAKAMI, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | In order to improve both the bit error rate (BER) performance and the tracking capability on time-varying channels, this paper proposes a generalized version of differentially encoded transmit time diversity and associated blind demodulation techniques. At first, this paper assumes that the demodulator employs maximum-likelihood sequence estimation (MLSE) with per-survivor processing (PSP) , and PSP-MLSE estimates the channel impulse response by means of the normal equation, i.e., the deterministic Wiener-Hopf equations. This paper then derives the requirement for the transmitted sequence according to the PSP-MLSE's demodulation constraints. Next, taking into account these requirements, this paper proposes a differentially encoded transmit time diversity scheme employing a different mapping for each transmit antenna. Computer simulations confirm that the proposed scheme has excellent tracking capability for fast time-varying fading without a reference sequence. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Transmit Diversity / Space-Time Signal Processing / Multiple-Input Multiple-Output / Viterbi Detection / MIMO |
Paper # | RCS2002-224,DSP2002-155,SAT2002-105 |
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Conference Information | |
Committee | RCS |
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Conference Date | 2003/1/8(1days) |
Place (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Radio Communication Systems (RCS) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | A Generalization of Differentially Encoded Transmit Time Diversity and Its Blind Demodulation Techniques |
Sub Title (in English) | |
Keyword(1) | Transmit Diversity |
Keyword(2) | Space-Time Signal Processing |
Keyword(3) | Multiple-Input Multiple-Output |
Keyword(4) | Viterbi Detection |
Keyword(5) | MIMO |
1st Author's Name | Hiroshi KUBO |
1st Author's Affiliation | Inform. Technol. R&D Center, Mitsubishi Electric Corp.() |
2nd Author's Name | Akihiro OKAZAKI |
2nd Author's Affiliation | Inform. Technol. R&D Center, Mitsubishi Electric Corp. |
3rd Author's Name | Keishi MURAKAMI |
3rd Author's Affiliation | Inform. Technol. R&D Center, Mitsubishi Electric Corp. |
Date | 2003/1/8 |
Paper # | RCS2002-224,DSP2002-155,SAT2002-105 |
Volume (vol) | vol.102 |
Number (no) | 549 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |