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| Presentation | 2015-12-18 17:05 Capacity Comparison of 4-by-4 MIMO Channel Using Leaky Coaxial Cables for Linear-cells with Different Power Allocation Methods Sha Li, Yafei Hou, Takeshi Higashino, Minoru Okada (NAIST)  WBS2015-83 ITS2015-55 RCC2015-85 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | As the increasing of the demands of wireless access, the improvement of capacity are highly required, especially in some long and narrow areas, such as train stations, shopping malls, or airports and so on which also called as linear-cell environment. In this paper, we discuss the methods of increasing capacity of wireless channel with a novel multiple input multiple output (MIMO) system using leaky coaxial (LCX) cable and evaluate its capacity with different power allocation methods. Comparing with the system using Omni-directional antennas, proposed LCX-MIMO can achieve higher capacity with less interference and less handover process. In addition, our proposal can utilize one LCX cable as two antennas and further configure a 4-by-4 MIMO channel using two LCX cables, which can reduce the required space of equipment and materiel cost. In this paper, we will compare the capacity of the LCX-MIMO system with three methods of power allocation, equal power (EP) power allocation, Spatial-domain water-filling (SWF) power allocation and Spatial-Frequency domain Water-filling power allocation or Double domains water-filling (DWF) allocation. The results in 2.4GHz and 5GHz bands show that our proposed LCX-MIMO can achieve higher capacity than that of using Omni-directional antennas. It also has good channel capacity even if the spacing between the pair of LCXs is as small as 2cm. In addition, it also shows that Double domain WF algorithm improves the capacity compared with the other methods at the non line-of-sight. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Capacity / LCX-MIMO / MIMO System / Water-Filling Algorithm / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 366, RCC2015-85, pp. 251-256, Dec. 2015. | |
| Paper # | RCC2015-85 | |
| Date of Issue | 2015-12-10 (WBS, ITS, RCC) | |
| 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 | WBS2015-83 ITS2015-55 RCC2015-85 |
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| Conference Information | |
| Committee | RCC ITS WBS |
| Conference Date | 2015-12-17 - 2015-12-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Industry Support Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | ITS Communications, Reliable Communication, etc. Poster Session. |
| Paper Information | |
| Registration To | RCC |
| Conference Code | 2015-12-RCC-ITS-WBS |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Capacity Comparison of 4-by-4 MIMO Channel Using Leaky Coaxial Cables for Linear-cells with Different Power Allocation Methods |
| Sub Title (in English) | |
| Keyword(1) | Capacity |
| Keyword(2) | LCX-MIMO |
| Keyword(3) | MIMO System |
| Keyword(4) | Water-Filling Algorithm |
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| Keyword(8) | |
| 1st Author's Name | Sha Li |
| 1st Author's Affiliation | Nara Institute of Science and Technology (NAIST) |
| 2nd Author's Name | Yafei Hou |
| 2nd Author's Affiliation | Nara Institute of Science and Technology (NAIST) |
| 3rd Author's Name | Takeshi Higashino |
| 3rd Author's Affiliation | Nara Institute of Science and Technology (NAIST) |
| 4th Author's Name | Minoru Okada |
| 4th Author's Affiliation | Nara Institute of Science and Technology (NAIST) |
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| Speaker | Author-1 |
| Date Time | 2015-12-18 17:05:00 |
| Presentation Time | 25 minutes |
| Registration for | RCC |
| Paper # | WBS2015-83, ITS2015-55, RCC2015-85 |
| Volume (vol) | vol.115 |
| Number (no) | no.364(WBS), no.365(ITS), no.366(RCC) |
| Page | pp.251-256 |
| #Pages | 6 |
| Date of Issue | 2015-12-10 (WBS, ITS, RCC) |
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