| 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-suA'ivor 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 Diverstiy / Space-Time Signal Processing / Multiple-input Multiple-Output / Viterbi Detection |
| Paper # | DSP2002-155,SAT2002-105,RCS2002-224 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 2003/1/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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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 Diverstiy |
| Keyword(2) | Space-Time Signal Processing |
| Keyword(3) | Multiple-input Multiple-Output |
| Keyword(4) | Viterbi Detection |
| 1st Author's Name | Hiroshi KUBO |
| 1st Author's Affiliation | Inform. Technol. RD Center, Mitsubishi Electric Corp.,() |
| 2nd Author's Name | Akihiro OKAZAKI |
| 2nd Author's Affiliation | Inform. Technol. RD Center, Mitsubishi Electric Corp., |
| 3rd Author's Name | Keishi MURAKAMI |
| 3rd Author's Affiliation | Inform. Technol. RD Center, Mitsubishi Electric Corp., |
| Date | 2003/1/8 |
| Paper # | DSP2002-155,SAT2002-105,RCS2002-224 |
| Volume (vol) | vol.102 |
| Number (no) | 546 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |