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| Presentation | 2012-10-18 10:15 Performance Evaluation of Interference Rejection Combining Receiver in LTE-Advanced Uplink CoMP Takashi Iwai (PMCRD), Kazuki Takeda, Akihiko Nishio (Panasonic), Atsushi Matsumoto, Sadaki Futagi (PMCRD)  RCS2012-138 SR2012-58 AN2012-32 USN2012-35 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Introduction of coordinated multipoint (CoMP) operation is considered to enhance the spectrum efficiency in LTE-Advanced (Release 11) uplink. The multiple user equipments (UEs) within the coordinated cells should be multiplexed on the same frequency to increase spectrum efficiency. The interference rejection combining (IRC) receiver is effective in separating the signals of multiplexed UEs on the same frequency. The IRC receiver requires highly accurate channel estimation of the desired and interfered signals. Hence, the cell to apply the CoMP operation needs to calculate the channel estimation of each UE with high accuracy using the de-modulation reference signal (DMRS) of multiplexing UEs. However, assuming realistic cell specific scheduler, the performance improvement by applying CoMP decreases because the channel estimation accuracy is deteriorated greatly due to collapse the orthogonality relation of DMRS sequences among multiplexing UEs. In this paper, we propose the IRC receiver that changes the covariance matrix estimation method based on whether DMRS sequences can be separated or not. This paper verifies the uplink CoMP performance using the proposed IRC receiver by using system level simulation. The simulation results show that the proposed IRC receiver improves the system performance and cell-edge throughput more than 10% over the conventional IRC receiver. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | LTE-Advanced / uplink / CoMP / IRC receiver / inter-cell interference / DMRS / system level simulation / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 239, RCS2012-138, pp. 81-86, Oct. 2012. | |
| Paper # | RCS2012-138 | |
| Date of Issue | 2012-10-10 (RCS, SR, AN, USN) | |
| 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 | RCS2012-138 SR2012-58 AN2012-32 USN2012-35 |
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| Conference Information | |
| Committee | SR AN USN RCS |
| Conference Date | 2012-10-17 - 2012-10-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukuoka univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | wireless distributed network, general topics |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2012-10-SR-AN-USN-RCS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Performance Evaluation of Interference Rejection Combining Receiver in LTE-Advanced Uplink CoMP |
| Sub Title (in English) | |
| Keyword(1) | LTE-Advanced |
| Keyword(2) | uplink |
| Keyword(3) | CoMP |
| Keyword(4) | IRC receiver |
| Keyword(5) | inter-cell interference |
| Keyword(6) | DMRS |
| Keyword(7) | system level simulation |
| Keyword(8) | |
| 1st Author's Name | Takashi Iwai |
| 1st Author's Affiliation | Panasonic Mobile Communications R&D Lab. Co.,Ltd (PMCRD) |
| 2nd Author's Name | Kazuki Takeda |
| 2nd Author's Affiliation | Panasonic Corporation (Panasonic) |
| 3rd Author's Name | Akihiko Nishio |
| 3rd Author's Affiliation | Panasonic Corporation (Panasonic) |
| 4th Author's Name | Atsushi Matsumoto |
| 4th Author's Affiliation | Panasonic Mobile Communications R&D Lab. Co.,Ltd (PMCRD) |
| 5th Author's Name | Sadaki Futagi |
| 5th Author's Affiliation | Panasonic Mobile Communications R&D Lab. Co.,Ltd (PMCRD) |
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| Speaker | Author-1 |
| Date Time | 2012-10-18 10:15:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2012-138, SR2012-58, AN2012-32, USN2012-35 |
| Volume (vol) | vol.112 |
| Number (no) | no.239(RCS), no.240(SR), no.241(AN), no.242(USN) |
| Page | pp.81-86(RCS), pp.139-144(SR), pp.51-56(AN), pp.45-50(USN) |
| #Pages | 6 |
| Date of Issue | 2012-10-10 (RCS, SR, AN, USN) |
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