| Presentation | 1999/1/21 Wireless Multi-casting Scheme with OFDM Space Combining Transmission Diversity Makoto Ise, Yoichi Matsumoto, Masahiro Umehira, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | On wireless multi-cast communications, propagation condition for mobile terminals(MTs) are different each other. Though it is possible to guarantee communication quality to all MTs by retransmission control, it will degrade the system throughput performance. In this paper, we have proposed a new wireless multi-casting scheme that improves system throughput performance by focusing OFDM space combining transmission diversity effect on poor quality terminals. On our proposal, a base station classifies each terminals's communication quality by monitoring the condition on the up-link. In addition, to supply the diversity gain to the MTs with poor channels as much as possible, we have defined evaluation functions with parameters of received signal levels from the MTs. The base station selects an antenna according to the evaluation function value carrier-by-carrier. We have also evaluated the performance of the proposed scheme by referring its unsuccessful transmission probability, and computer simulation results show that the proposed scheme is effective for the multi-cast communication. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / multi-cast / transmission diversity / antenna selection / unsuccessful packet transmission probability |
| Paper # | DSP98-151,SAT98-71,RCS98-173 |
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| Conference Information | |
| Committee | SAT |
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| Conference Date | 1999/1/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Satellite Telecommunications (SAT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Wireless Multi-casting Scheme with OFDM Space Combining Transmission Diversity |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | multi-cast |
| Keyword(3) | transmission diversity |
| Keyword(4) | antenna selection |
| Keyword(5) | unsuccessful packet transmission probability |
| 1st Author's Name | Makoto Ise |
| 1st Author's Affiliation | NTT Wireless Systems Laboratories() |
| 2nd Author's Name | Yoichi Matsumoto |
| 2nd Author's Affiliation | NTT Wireless Systems Laboratories |
| 3rd Author's Name | Masahiro Umehira |
| 3rd Author's Affiliation | NTT Wireless Systems Laboratories |
| Date | 1999/1/21 |
| Paper # | DSP98-151,SAT98-71,RCS98-173 |
| Volume (vol) | vol.98 |
| Number (no) | 535 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |