Paper Abstract and Keywords |
Presentation |
2006-10-19 13:50
Experimental Studies on Simpified Decision-Feedback Channel Tracking Scheme for MIMO-OFDM Systems Yusuke Asai, Wenjie Jiang, Takeshi Onizawa, Satoru Aikawa (NTT Corporation) RCS2006-135 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper describes the experimental performance for the test bed of a simple decision-feedback channel tracking scheme for a packet based MIMO-OFDM system. The test bed is implemented on field programmable gate array (FPGA) by 1/5 scale. The channel tracking scheme continuously estimates the channel state matrix for each subcarrier by using both received signal and replica of the transmitted signal. The estimated channel state matrices, which are estimated mutually different timings, are combined and each channel state matrix is updated.
The experimental packet error rate (PER) performances are evaluated. The experimental conditions are as follows: RF frequency is 5GHz, Zero-forcing algorithm is used for MIMO signal detection, subcarrier modulation scheme and coding rate are 16QAM and 1/2, and “required SNR for 1e-2 of PER” is used for performance evaluation . The proposed channel tracking scheme keeps the degradation of the required SNR within 1 dB when the velocity of mobile terminal is less than 45 km/h. The experimental results confirm that the proposed scheme effectively tracks the fluctuation of a MIMO channel when it is implemented on FPGA. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
MIMO / OFDM / channel estimation / channel tracking / Doppler shift / wireless LAN / IEEE802.11n / |
Reference Info. |
IEICE Tech. Rep., vol. 106, no. 305, RCS2006-135, pp. 13-18, Oct. 2006. |
Paper # |
RCS2006-135 |
Date of Issue |
2006-10-12 (RCS) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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RCS2006-135 |
Conference Information |
Committee |
RCS |
Conference Date |
2006-10-19 - 2006-10-20 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kagawa Univ |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
RCS |
Conference Code |
2006-10-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Experimental Studies on Simpified Decision-Feedback Channel Tracking Scheme for MIMO-OFDM Systems |
Sub Title (in English) |
|
Keyword(1) |
MIMO |
Keyword(2) |
OFDM |
Keyword(3) |
channel estimation |
Keyword(4) |
channel tracking |
Keyword(5) |
Doppler shift |
Keyword(6) |
wireless LAN |
Keyword(7) |
IEEE802.11n |
Keyword(8) |
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1st Author's Name |
Yusuke Asai |
1st Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT Corporation) |
2nd Author's Name |
Wenjie Jiang |
2nd Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT Corporation) |
3rd Author's Name |
Takeshi Onizawa |
3rd Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT Corporation) |
4th Author's Name |
Satoru Aikawa |
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Nippon Telegraph and Telephone Corporation (NTT Corporation) |
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Speaker |
Author-1 |
Date Time |
2006-10-19 13:50:00 |
Presentation Time |
25 minutes |
Registration for |
RCS |
Paper # |
RCS2006-135 |
Volume (vol) |
vol.106 |
Number (no) |
no.305 |
Page |
pp.13-18 |
#Pages |
6 |
Date of Issue |
2006-10-12 (RCS) |
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