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| Presentation | 2006-07-07 13:00 Performance comparison of LMS, RLS and QRD-RLS algorithm by FPGA Implementation Yoshiaki Yokoyama, Hirokazu Oba (Yokohama Natl. Univ.), Minseok Kim (Brains Co.,Ltd.), Hiroyuki Arai (Yokohama Natl. Univ.)  AP2006-51 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Minimum Mean Square Error(MMSE) Adaptive Array Antenna is an effective technique to achieve high-speed mobile communication system. MMSE suppresses the interference and delayed waves by steering null direction to them, and detects the desired signal by forming the main-lobe to the desired wave. There are some well-known optimization techniques to obtain the optimum weights, RLS(Recursive Least Squares) algorithm is known as fast convergence property than LMS(Least Mean Square) algorithm. However, the complexity increases in proportion to the square of the number of array elements. A systolic array processor computes the QRD-RLS algorithm based on Givens rotation using of high order of parallelism and pipeline architecture, and it can reduce the processing time needed by RLS algorithm. This report presents FPGA implementation of LMS, RLS, QRD-RLS algorithm and evaluates gate usages, convergence characteristics at actual processing time and bit dependency with fixed-point computation. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | adaptive array antenna / NLMS / RLS / QRD-RLS / RLS systolic array / FPGA implementation / / | |
| Reference Info. | IEICE Tech. Rep., vol. 106, no. 140, AP2006-51, pp. 73-78, July 2006. | |
| Paper # | AP2006-51 | |
| Date of Issue | 2006-06-29 (AP) | |
| 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) | |
| Download PDF | AP2006-51 |
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| Conference Information | |
| Committee | AP SAT |
| Conference Date | 2006-07-06 - 2006-07-07 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hiroshima Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Satellite Communications, Antennas and Progation, etc. |
| Paper Information | |
| Registration To | AP |
| Conference Code | 2006-07-AP-SAT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Performance comparison of LMS, RLS and QRD-RLS algorithm by FPGA Implementation |
| Sub Title (in English) | |
| Keyword(1) | adaptive array antenna |
| Keyword(2) | NLMS |
| Keyword(3) | RLS |
| Keyword(4) | QRD-RLS |
| Keyword(5) | RLS systolic array |
| Keyword(6) | FPGA implementation |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yoshiaki Yokoyama |
| 1st Author's Affiliation | Yokohama National University (Yokohama Natl. Univ.) |
| 2nd Author's Name | Hirokazu Oba |
| 2nd Author's Affiliation | Yokohama National University (Yokohama Natl. Univ.) |
| 3rd Author's Name | Minseok Kim |
| 3rd Author's Affiliation | Brains Corporation (Brains Co.,Ltd.) |
| 4th Author's Name | Hiroyuki Arai |
| 4th Author's Affiliation | Yokohama National University (Yokohama Natl. Univ.) |
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| Speaker | Author-1 |
| Date Time | 2006-07-07 13:00:00 |
| Presentation Time | 25 minutes |
| Registration for | AP |
| Paper # | AP2006-51 |
| Volume (vol) | vol.106 |
| Number (no) | no.140 |
| Page | pp.73-78 |
| #Pages | 6 |
| Date of Issue | 2006-06-29 (AP) |
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