| Paper Abstract and Keywords |
| Presentation |
2006-03-17 09:30
Relation between CDMA detection dynamics and bit error rate
Hiroaki Takedomi, Masaki Kawamura (Yamaguchi Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
There are some methods for CDMA demodulations. The best CDMA
demodulation is the Bayesian optimal multiuser demodulation method. Since this method is NP-hard, quasi optimal multiuser demodulation methods have been proposed. A multistage demodulation method is one of the
quasi optimal multiuser demoduration methods. The multistage demodulation method demodulates by synchronous dynamics. We can
concider various demodulation methods except for the synchronous
dynamics: asyncronous dynamics, continuous time dynamics, and finite
temperature dynamics. These demodulation methods can be theoretically
analyzed. However, difference between these methods have not been
discussed yet.
We compare bit error rate (BER) on equilibrium states by SCSNA with one by the
demodulation methods.
In the results, the BERs by these methods agree with each other in the
case of a small load. However, they do not in the case of the load which
bistability exists.
Comparing the BERs of these methods, we found the continuous time
dynamics have best performance. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
CDMA demodulation / multistage demodulation method / demodulation dynamics / SCSNA / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 659, NC2005-163, pp. 73-78, March 2006. |
| Paper # |
NC2005-163 |
| Date of Issue |
2006-03-10 (NC) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
NC |
| Conference Date |
2006-03-15 - 2006-03-17 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Tamagawa University |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
General |
| Paper Information |
| Registration To |
NC |
| Conference Code |
2006-03-NC |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Relation between CDMA detection dynamics and bit error rate |
| Sub Title (in English) |
|
| Keyword(1) |
CDMA demodulation |
| Keyword(2) |
multistage demodulation method |
| Keyword(3) |
demodulation dynamics |
| Keyword(4) |
SCSNA |
| Keyword(5) |
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| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Hiroaki Takedomi |
| 1st Author's Affiliation |
Yamaguchi University (Yamaguchi Univ.) |
| 2nd Author's Name |
Masaki Kawamura |
| 2nd Author's Affiliation |
Yamaguchi University (Yamaguchi Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2006-03-17 09:30:00 |
| Presentation Time |
25 minutes |
| Registration for |
NC |
| Paper # |
NC2005-163 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.659 |
| Page |
pp.73-78 |
| #Pages |
6 |
| Date of Issue |
2006-03-10 (NC) |
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