| Presentation | 1996/12/13 Optimum Despreading Code Sequences for Interference Noise Suppression in DS/CDMA Nobuaki ITO, Kohei OHTAKE, Noriyoshi KUROYANAGI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents the optimum despreading code sequences and the maximum atainable SNR under colored random noise and cochannel interference noise environments in DS/CDMA. Specifically, under the condition that the power spectrum of the colored random noise, and spreading-codes, spreading-timmings and interference levels of cochannels are all known, demodulation SNR analysis are conducted. A desgin prnciple of the optimum despreding-code sequence to atain the maximum SNR and the related SNR characteristics are shown. The analized results are assured by computer simulation. An adaptive demodulation scheme computer simulation is also conducted, which dose not require above noise information at all. It is shown that its SNR is very close to that through the optimum despreading code whthin comparative small number of users. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DS/CDMA / colored noise / cochannel interference / spreading-code / despreading-code / adaptive demodulation |
| Paper # | SST96-62 |
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| Conference Information | |
| Committee | SST |
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| Conference Date | 1996/12/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Spread Spectrum Technology (SST) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optimum Despreading Code Sequences for Interference Noise Suppression in DS/CDMA |
| Sub Title (in English) | |
| Keyword(1) | DS/CDMA |
| Keyword(2) | colored noise |
| Keyword(3) | cochannel interference |
| Keyword(4) | spreading-code |
| Keyword(5) | despreading-code |
| Keyword(6) | adaptive demodulation |
| 1st Author's Name | Nobuaki ITO |
| 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 | 1996/12/13 |
| Paper # | SST96-62 |
| Volume (vol) | vol.96 |
| Number (no) | 427 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |