| Presentation | 2006-11-17 Study of 1Gbps Optical Wireless Transmission using LEDs with Bandwidth Equalization and M-ASK Modulation Techniques Kazutoshi HASE, Keisuke KINOSHITA, Hideo YASUMOTO, Tomoaki IEDA, Hiroyuki SASAI, Masaru FUSE, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We studied the 1Gbps diffusing optical wireless transmission scheme using LEDs to balance the high speed and the cost-effectiveness as the next generation high-speed wireless transmission technology. To achieve high speed modulation for commercially available LEDs with the bandwidth of about 50MHz, by equalizing the bandwidth and optimizing the modulation current amplitude, we demonstrated the 500Mbps modulation under the low bias drive condition, and 1Gbps modulation was achieved by introducing the Multi-Amplitude Shift Keying (M-ASK) modulation technique. To extend the transmission distance, we studied the modulation circuit of plural LEDs, and clarified the series connection number in order to ensure the required modulation bandwidth. Based on the result of the above-mentioned study, we developed the optical transmitter and the optical receiver, and the error free characteristics (BER<10^<-12>) was demonstrated in the transmission distance of 50cm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical Wireless Communication / LED / Bandwidth Equalization / M-ASK Modulation / clipping / Bit Error Rate |
| Paper # | OCS2006-72 |
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| Committee | OCS |
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| Conference Date | 2006/11/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optical Communication Systems (OCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study of 1Gbps Optical Wireless Transmission using LEDs with Bandwidth Equalization and M-ASK Modulation Techniques |
| Sub Title (in English) | |
| Keyword(1) | Optical Wireless Communication |
| Keyword(2) | LED |
| Keyword(3) | Bandwidth Equalization |
| Keyword(4) | M-ASK Modulation |
| Keyword(5) | clipping |
| Keyword(6) | Bit Error Rate |
| 1st Author's Name | Kazutoshi HASE |
| 1st Author's Affiliation | Network Development Center, Matsushita Electric Industrial Co., Ltd.() |
| 2nd Author's Name | Keisuke KINOSHITA |
| 2nd Author's Affiliation | Network Development Center, Matsushita Electric Industrial Co., Ltd. |
| 3rd Author's Name | Hideo YASUMOTO |
| 3rd Author's Affiliation | Network Development Center, Matsushita Electric Industrial Co., Ltd. |
| 4th Author's Name | Tomoaki IEDA |
| 4th Author's Affiliation | Network Development Center, Matsushita Electric Industrial Co., Ltd. |
| 5th Author's Name | Hiroyuki SASAI |
| 5th Author's Affiliation | Network Development Center, Matsushita Electric Industrial Co., Ltd. |
| 6th Author's Name | Masaru FUSE |
| 6th Author's Affiliation | Network Development Center, Matsushita Electric Industrial Co., Ltd. |
| Date | 2006-11-17 |
| Paper # | OCS2006-72 |
| Volume (vol) | vol.106 |
| Number (no) | 349 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |