| Presentation | 1997/3/19 DS/SS Demodulation System Using 2N+1 Frame Length Optimum Despreading Code Sequences Kunimitsu ARAI, Kohei OHTAKE, Noriyoshi KUROYANAGI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In DS/SS communication under colored noise environments an unique demodulation method using one or two frame length optimized despreading code has been reported to improve the demodulation SN ratio. This paper proposes more generalized 2N+1 frame length demodulation technique using despreading code sequences optimized not only over the current frame but also over both the preceding and the succeeding N frames. Its system configration, SNR analysis and the optimum despreading code design method are shown. Taking sinusoidal and band expanded noise models as examples of colored noise, the optimum despreading code sequences are also shown, and SNR and BER characteristics show the usefulness of the technique. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DS/SS communication / Colored noise / Multiframe demodulation / Optimum despreading code / SN ratio / BER |
| Paper # | IT96-100,ISEC96-92,SST96-107 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 1997/3/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Information Security (ISEC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | DS/SS Demodulation System Using 2N+1 Frame Length Optimum Despreading Code Sequences |
| Sub Title (in English) | |
| Keyword(1) | DS/SS communication |
| Keyword(2) | Colored noise |
| Keyword(3) | Multiframe demodulation |
| Keyword(4) | Optimum despreading code |
| Keyword(5) | SN ratio |
| Keyword(6) | BER |
| 1st Author's Name | Kunimitsu ARAI |
| 1st Author's Affiliation | College of Engineering Hosei Univ.() |
| 2nd Author's Name | Kohei OHTAKE |
| 2nd Author's Affiliation | College of Engineering Hosei Univ. |
| 3rd Author's Name | Noriyoshi KUROYANAGI |
| 3rd Author's Affiliation | Faculty of Technology Tokyo Engineering Univ. |
| Date | 1997/3/19 |
| Paper # | IT96-100,ISEC96-92,SST96-107 |
| Volume (vol) | vol.96 |
| Number (no) | 589 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |