| Presentation | 1997/3/19 A Proposal of Double M-ary/SS System Kentaro Takeuchi, Shin'ichi Tachikawa, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | M-ary/SS communication system is well known that it has high spectral efficiency. In this paper, to obtain higher spectral efficiency, we propose a Double M-ary/SS communication system which is multiplied three sequences from a conventional M-ary/SS with another sequences three times of chip duration from same M-ary/SS. Then, we estimate the system performance in AWGN environment by computer simulations, and show the BER and spectral efficiency of the system can be improved than that of M-ary/SS. However, in demodulation of this system, a lot of quantities of calculations are needed. Therefore, we consider a simplified method of demodulation algorithm. We propose a novel algorithm like FHT(Fast Hadamard Transform) and compare quantities of calculations of the algorithm with that of conventional demodulation algorithm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | spread spectrum / Double M-ary/SS / M-ary/SS / spectral efficiency / Fast Hadamard Transform(FHT) |
| Paper # | IT96-102,ISEC96-94,SST96-109 |
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| Conference Information | |
| Committee | IT |
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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) |
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| Paper Information | |
| Registration To | Information Theory (IT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Proposal of Double M-ary/SS System |
| Sub Title (in English) | |
| Keyword(1) | spread spectrum |
| Keyword(2) | Double M-ary/SS |
| Keyword(3) | M-ary/SS |
| Keyword(4) | spectral efficiency |
| Keyword(5) | Fast Hadamard Transform(FHT) |
| 1st Author's Name | Kentaro Takeuchi |
| 1st Author's Affiliation | Nagaoka University of Technology() |
| 2nd Author's Name | Shin'ichi Tachikawa |
| 2nd Author's Affiliation | Nagaoka University of Technology |
| Date | 1997/3/19 |
| Paper # | IT96-102,ISEC96-94,SST96-109 |
| Volume (vol) | vol.96 |
| Number (no) | 587 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |