| Presentation | 2004/3/8 順次検出形CDMAマルチユーザ受信機(ブロードバンドモバイル時代における基礎技術)(情報通信サブソサイエティ合同研究会) Mitsuhiro TOMITA, Noriyoshi KUROYANAGI, Kohei OHTAKE, Satoru OZAWA, Naoki SUEHIRO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a sequential detection multi-user receiver which is constructed over a CDMA system such that a transmitter transmits a symbol made by spreading the spectrum with an enveloped sequence protected by guard sequences, and a receiver de-modulates the core-sequence part of the received symbol with a de-correlating detector or an MMSE detector, and has an advantage of improving the performance without reducing the number of the active users. This sequential detection uses such a method that the maximum likelihood user signal is estimated out of soft outputs, which are obtained by solving a de-correlating system of equations, and then detected, followed by removing the detected user component from the received symbol. All the user signals may be sequentially detected by repeating the method. The computer simulation reveals that a remarkable improvement in bit error rate performance may be achieved with the sequential detection, compared to conventional systems. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | CDMA / multi-user receiver / de-correlating detector / MMSE |
| Paper # | IT2003-65,ISEC2003-105,WBS2003-183 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2004/3/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | 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) | |
| Sub Title (in English) | |
| Keyword(1) | CDMA |
| Keyword(2) | multi-user receiver |
| Keyword(3) | de-correlating detector |
| Keyword(4) | MMSE |
| 1st Author's Name | Mitsuhiro TOMITA |
| 1st Author's Affiliation | Tokyo University of Technology() |
| 2nd Author's Name | Noriyoshi KUROYANAGI |
| 2nd Author's Affiliation | Chubu University |
| 3rd Author's Name | Kohei OHTAKE |
| 3rd Author's Affiliation | Hosei University |
| 4th Author's Name | Satoru OZAWA |
| 4th Author's Affiliation | Tokyo University of Technology |
| 5th Author's Name | Naoki SUEHIRO |
| 5th Author's Affiliation | Tsukuba University |
| Date | 2004/3/8 |
| Paper # | IT2003-65,ISEC2003-105,WBS2003-183 |
| Volume (vol) | vol.103 |
| Number (no) | 712 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |