Presentation | 2003/2/28 A Study on Improvement of Capacity by Single Carrier in CDMA Cellular System Toshinori SUZUKI, Noriaki MIYAZAKI, Tadayuki FUKUHARA, Yoshio TAKEUCHI, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | This paper studies a broadband access method of forward links based ou an existing cellular system whose carrier has 1.25 MHz bandwidth for each. In multi-cell environment, average data rates Pcr ccll by 1.25 MHz carrier were numerically evaluated under a couple of conditions. With an adaptive modulation scheme, it is shown that reuse factor of one (i.e., same frequency band is used for all cells) has highest average data rates per cell, which is 3.56 Mbps (2.85 bps/Hz) at maximum. However, under multi-path conditions, data rates degrade duc to self-interference down to 1.75 Mbps (1.4 bPs/Hz) with Rake combiner. In this condition,by MMSH frequency domain equalization for SC-FDE, the average data rate improves to 2.8 Mhps (2.25 bps/Hz). Even with the limited peak data rale by 5 Mhps (4 bps/Hz), the average data rate becomes 2.25 Mbps(1.85 bps/Hz), which is 80% of the maximum. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | CDMA / Cellular / Broadband / Adaptive Modulation |
Paper # | MoMuC2002-158,MW2002-240 |
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Conference Information | |
Committee | SST |
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Conference Date | 2003/2/28(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Spread Spectrum Technology (SST) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | A Study on Improvement of Capacity by Single Carrier in CDMA Cellular System |
Sub Title (in English) | |
Keyword(1) | CDMA |
Keyword(2) | Cellular |
Keyword(3) | Broadband |
Keyword(4) | Adaptive Modulation |
1st Author's Name | Toshinori SUZUKI |
1st Author's Affiliation | KDDI R&D Laboratories, Inc.() |
2nd Author's Name | Noriaki MIYAZAKI |
2nd Author's Affiliation | KDDI R&D Laboratories, Inc. |
3rd Author's Name | Tadayuki FUKUHARA |
3rd Author's Affiliation | KDDI R&D Laboratories, Inc. |
4th Author's Name | Yoshio TAKEUCHI |
4th Author's Affiliation | KDDI R&D Laboratories, Inc. |
Date | 2003/2/28 |
Paper # | MoMuC2002-158,MW2002-240 |
Volume (vol) | vol.102 |
Number (no) | 670 |
Page | pp.pp.- |
#Pages | 7 |
Date of Issue |