| Presentation | 1997/9/25 An Adaptive Receiver with High Speed Convergence Characteristics for DS/CDMA Systems Kunimitsu ARAI, Kohei OHTAKE, Noriyoshi KUROYANAGI, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An adaptive receiver is a promising technique for DS/CDMA systems, which combats the multiuser interference noise by successively renewing despreading code sequences. There exists, however, such a problem that it requires a considerable convergence time under certain interference noise conditions, and some efforts have been paid for improving it. This paper proposes all adaptive receiver scheme using linear combinations of received vectors, which greatly improves convergence time. Specifically, in this scheme adaptive processing is carried out not only to the current received vector but also to certain number of vectors generated by linear combinations of current and some past received vectors, which works as if adaptive processing is made to such received vectors that involves half of the interferers on the average, and it makes a great improvement of convergence time. The effectiveness of the scheme is confirmed by showing convergence characteristics when applying it to three interference noise models. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DS/CDMA / Co-channel interference noise / Adaptive receiver / MMSE / Convergence characteristics |
| Paper # | RCS97-95 |
| Date of Issue |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 1997/9/25(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Adaptive Receiver with High Speed Convergence Characteristics for DS/CDMA Systems |
| Sub Title (in English) | |
| Keyword(1) | DS/CDMA |
| Keyword(2) | Co-channel interference noise |
| Keyword(3) | Adaptive receiver |
| Keyword(4) | MMSE |
| Keyword(5) | Convergence characteristics |
| 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 | 1997/9/25 |
| Paper # | RCS97-95 |
| Volume (vol) | vol.97 |
| Number (no) | 267 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |