| Paper Abstract and Keywords |
| Presentation |
2005-10-21 11:40
OFDM Packet Transmission using Soft Decision-directed Channel Estimation with Highly Efficient Pilot Symbol
Syuichi Shimura, Satoshi Suyama, Hiroshi Suzuki, Kazuhiko Fukawa (Tokyo Tech) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
To realize highly efficient OFDM packet transmission in mobile communications, this report proposes both a transmission scheme with a pilot symbol having much less pilot subcarriers and a channel estimation method using such a pilot symbol. Generally, coherent detection for the OFDM packet transmission requires accurate estimation of channel frequency responses and then needs pilot subcarriers allocated to all subcarriers, which remarkably degrades transmission efficiency of short packets. To improve the transmission efficiency, the proposed scheme uses only one pilot symbol for channel estimation, which contains regularly spaced pilot subcarriers and data subcarriers. Furthermore, the proposed receiver carries out soft decision-directed channel estimation (SDCE) and iterates the reception processing which consists of the channel estimation, the coherent detection, and channel decoding, in order to perform the accurate channel estimation even with much less pilot subcarriers. Computer simulations demonstrate that the proposed scheme can achieve almost the same accuracy of the channel estimation and transmission performance as those of a conventional one at the cost of much less pilot subcarriers. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Mobile communications / OFDM / transmission efficiency / Decision-directed Channel Estimation / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 356, RCS2005-102, pp. 103-108, Oct. 2005. |
| Paper # |
RCS2005-102 |
| Date of Issue |
2005-10-13 (RCS) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
AP RCS |
| Conference Date |
2005-10-20 - 2005-10-21 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Akita Prefectural Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Adaptive Antenna, MIMO, RF Signal Processing etc. |
| Paper Information |
| Registration To |
RCS |
| Conference Code |
2005-10-AP-RCS |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
OFDM Packet Transmission using Soft Decision-directed Channel Estimation with Highly Efficient Pilot Symbol |
| Sub Title (in English) |
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| Keyword(1) |
Mobile communications |
| Keyword(2) |
OFDM |
| Keyword(3) |
transmission efficiency |
| Keyword(4) |
Decision-directed Channel Estimation |
| Keyword(5) |
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| 1st Author's Name |
Syuichi Shimura |
| 1st Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech) |
| 2nd Author's Name |
Satoshi Suyama |
| 2nd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech) |
| 3rd Author's Name |
Hiroshi Suzuki |
| 3rd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech) |
| 4th Author's Name |
Kazuhiko Fukawa |
| 4th Author's Affiliation |
Tokyo Institute of Technology (Tokyo Tech) |
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| Speaker |
Author-1 |
| Date Time |
2005-10-21 11:40:00 |
| Presentation Time |
25 minutes |
| Registration for |
RCS |
| Paper # |
RCS2005-102 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.356 |
| Page |
pp.103-108 |
| #Pages |
6 |
| Date of Issue |
2005-10-13 (RCS) |
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