| Presentation | 2005/2/25 Detecting the Number of Arrival Signals Using Preliminarily Estimated Signal Subspace Yoshihisa ISHIKAWA, Koichi ICHIGE, Hiroyuki ARAI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents an accurate detector of the number of incident waves arriving at smart antenna. The array antenna and MIMO techniques are developing toward 4th generation mobile communication systems, and the accurate estimation of propagation environment becomes more important. This paper attracts attention to the accurate detection of the number of incident waves which is one of important characteristics in multidirectional communication. There are some recent papers on the accurate detection, but they still have problems of comutational cost or estimation accuracy in severe environment like low SNR, small number of snapshots or adjacent waves. Thus AIC and MDL methods based on information theory are still often used. In this paper, we propose an accurate estimation method of the number of arrival signals using the orthogonality of subspaces derived from preliminary estimation of signal subspace. The proposed method accurately estimates the number of signals especially in severe environments where AIC and MDL methods can hardly estimate. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Number of Arrival Signals / Signal Subspace / Correlation Matrix / MDL Method |
| Paper # | WBS2004-144,A・P2004-325,RCS2004-412,MoMuC2004-195,MW2004-322 |
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| Conference Information | |
| Committee | MoMuC |
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| Conference Date | 2005/2/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Mobile Multimedia Communications(MoMuC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Detecting the Number of Arrival Signals Using Preliminarily Estimated Signal Subspace |
| Sub Title (in English) | |
| Keyword(1) | Number of Arrival Signals |
| Keyword(2) | Signal Subspace |
| Keyword(3) | Correlation Matrix |
| Keyword(4) | MDL Method |
| 1st Author's Name | Yoshihisa ISHIKAWA |
| 1st Author's Affiliation | Department of Electrical and Computer Engineering, Yokohama National University() |
| 2nd Author's Name | Koichi ICHIGE |
| 2nd Author's Affiliation | Department of Electrical and Computer Engineering, Yokohama National University |
| 3rd Author's Name | Hiroyuki ARAI |
| 3rd Author's Affiliation | Department of Electrical and Computer Engineering, Yokohama National University |
| Date | 2005/2/25 |
| Paper # | WBS2004-144,A・P2004-325,RCS2004-412,MoMuC2004-195,MW2004-322 |
| Volume (vol) | vol.104 |
| Number (no) | 683 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |