| Presentation | 2008-08-27 An Analysis of Cellular Channel Capacity Under Worst Case Condition Koichi ADACHI, Fumiyuki ADACHI, Masao NAKAGAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In cellular communication systems, the same carrier-frequency is re-used at spatially separated base stations (BSs) to efficiently utilize the limited bandwidth. Therefore, the channel capacity is limited by the co-channel interference (CCI) from the neighboring co-channel BSs. To reduce the CCI, it is necessary to increase the frequency-reuse factor (the number of different channel groups). However, the available bandwidth per BS becomes narrower and hence, the cellular channel capacity reduces. In this paper, we derive a simple upper-bound formula for the cellular channel capacity for the given frequency-reuse factor in an interference-limited environment assuming the worst case scenario (i.e., the mobile station of interest is located at the cell edge). Both the path loss and the log-normally distributed shadowing loss are taken into account. The derived formula predicts that the optimum frequency-reuse factor which maximizes the worst case cellular channel capacity is F=3～4 irrespective of the path loss exponent and shadowing standard deviation. This is confirmed by the computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cellular channel capacity / Theoretical study |
| Paper # | RCS2008-64 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2008/8/20(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Analysis of Cellular Channel Capacity Under Worst Case Condition |
| Sub Title (in English) | |
| Keyword(1) | Cellular channel capacity |
| Keyword(2) | Theoretical study |
| 1st Author's Name | Koichi ADACHI |
| 1st Author's Affiliation | School of Science for Open and Environmental Systems, Graduate School of Science and Technology, Keio University() |
| 2nd Author's Name | Fumiyuki ADACHI |
| 2nd Author's Affiliation | Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University |
| 3rd Author's Name | Masao NAKAGAWA |
| 3rd Author's Affiliation | School of Science for Open and Environmental Systems, Graduate School of Science and Technology, Keio University |
| Date | 2008-08-27 |
| Paper # | RCS2008-64 |
| Volume (vol) | vol.108 |
| Number (no) | 188 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |