| 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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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper studies a broadband access method of forward links based on an existing cellular system whose carrier has 1.25 MHz bandwidth for each. In multi-cell environment, average data rates per cell 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 due 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 Mbps (2.25 bps/Hz). Even with the limited peak data rate by 5 Mbps (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,SST202-133,A・P2002-232,RCS2002-349,MW2002-240 |
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| Conference Information | |
| Committee | MoMuC |
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| Conference Date | 2003/2/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Mobile Multimedia Communications(MoMuC) |
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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 RD Laboratories, Inc() |
| 2nd Author's Name | Noriaki MIYAZAKI |
| 2nd Author's Affiliation | KDDI RD Laboratories, Inc |
| 3rd Author's Name | Tadayuki FUKUHARA |
| 3rd Author's Affiliation | KDDI RD Laboratories, Inc |
| 4th Author's Name | Yoshio TAKEUCHI |
| 4th Author's Affiliation | KDDI RD Laboratories, Inc |
| Date | 2003/2/28 |
| Paper # | MoMuC2002-158,SST202-133,A・P2002-232,RCS2002-349,MW2002-240 |
| Volume (vol) | vol.102 |
| Number (no) | 679 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |