| Paper Abstract and Keywords |
| Presentation |
2005-10-27 13:30
A study on comparison between Successive Detection scheme based on ML criterion using M algorithm and QRD-M algorithm in down-link MC-CDMA System
Yoshihito Morishige, Masahiro Fujii, Makoto Itami, Kohji Itoh (TUS) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
It is well known that ML detection is the optimum multiuser detection
in the sense of minimizing the probability of the decision error.
While ML detector minimizes the Bit Error Rate (BER), it requires
complexity that grows exponentially with the increasing number of
simultaneous users.
In this paper, we propose a new multiuser detection scheme using ML
criterion and the M algorithm for Multi Carrier (MC)-Code Division
Multiple Access (CDMA) systems in the down-link channel.
We propose a tree search algorithm based on the linear filters using M
algorithm in searching surviving paths which extend to next stage in
order to reduce the computational complexity of ML detection.
Although the complexity of ML detector is exponentially increasing as a
function of the number of users, the proposed scheme requires linear
complexity.
We demonstrate that the proposed scheme achieves equivalent Bit Error
Rate (BER) performances with lower complexity in comparison with ML
detector by computer simulations.
Moreover we compare the proposed detection scheme with QRD-M algorithm
which makes use of QR decomposition combined with M algorithm. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
MC-CDMA / Maximum Likelihood detector / Tree structure / M algorithm / Multiuser Detection / QRD-M algorithm / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 364, WBS2005-32, pp. 1-6, Oct. 2005. |
| Paper # |
WBS2005-32 |
| Date of Issue |
2005-10-20 (WBS) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
WBS |
| Conference Date |
2005-10-27 - 2005-10-28 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Shizuoka University (Hamamatsu Campus) |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Multi-Carrier Systems, Synchronization, etc. |
| Paper Information |
| Registration To |
WBS |
| Conference Code |
2005-10-WBS |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A study on comparison between Successive Detection scheme based on ML criterion using M algorithm and QRD-M algorithm in down-link MC-CDMA System |
| Sub Title (in English) |
|
| Keyword(1) |
MC-CDMA |
| Keyword(2) |
Maximum Likelihood detector |
| Keyword(3) |
Tree structure |
| Keyword(4) |
M algorithm |
| Keyword(5) |
Multiuser Detection |
| Keyword(6) |
QRD-M algorithm |
| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Yoshihito Morishige |
| 1st Author's Affiliation |
Tokyo University of Science (TUS) |
| 2nd Author's Name |
Masahiro Fujii |
| 2nd Author's Affiliation |
Tokyo University of Science (TUS) |
| 3rd Author's Name |
Makoto Itami |
| 3rd Author's Affiliation |
Tokyo University of Science (TUS) |
| 4th Author's Name |
Kohji Itoh |
| 4th Author's Affiliation |
Tokyo University of Science (TUS) |
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| Speaker |
Author-1 |
| Date Time |
2005-10-27 13:30:00 |
| Presentation Time |
25 minutes |
| Registration for |
WBS |
| Paper # |
WBS2005-32 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.364 |
| Page |
pp.1-6 |
| #Pages |
6 |
| Date of Issue |
2005-10-20 (WBS) |