| Presentation | 2008-07-17 Evaluation method of electromagnetic interference characteristics for wireless LAN : Characteristics comparison by narrowing the frequency band width of desire wave Hiroshi KOYAMA, Masamitsu TOKUDA, Noboru FUJITA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Electromagnetic interference of frequency band be used by IEEE802.11g for wireless LAN (Local Aria Network) is very serious problems. In this study, we evaluate electromagnetic interference characteristics of wireless LAN by using Opened-PW (parallel wired) cell that is set in a radio anechoic chamber. Recently, the 10MHz and 5MHz wireless LAN systems that narrow the frequency bandwidth of the desired signal have been developing in order to improve problems due to the electromagnetic interference and increase the number of channel so that many systems can use at same place and same time. This time we used their new wireless LAN systems for this Evaluation. As a result, it is revealed that 10MHz and 5MHz wireless LAN systems can improve PER characteristics than the usual wireless LAN system with the channel spacing of 20MHz, and when impressing the interference wave with the wide bandwidth such as the wireless LAN IEEE802.11b, and PER characteristics of all wireless LAN systems with the channel spacing of 20MHz, 10MHz or 5MHz deteriorate than that when impressing the interference wave with the narrow bandwidth that is modulated by AM (Amplitude Modulation) specified by IEC/EN 61000-4-3. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless LAN / IEEE802.11g / PW-cell / Radio anechoic chamber / Immunity / EMC |
| Paper # | EMCJ2008-27 |
| Date of Issue |
| Conference Information | |
| Committee | EMCJ |
|---|---|
| Conference Date | 2008/7/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Electromagnetic Compatibility (EMCJ) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation method of electromagnetic interference characteristics for wireless LAN : Characteristics comparison by narrowing the frequency band width of desire wave |
| Sub Title (in English) | |
| Keyword(1) | Wireless LAN |
| Keyword(2) | IEEE802.11g |
| Keyword(3) | PW-cell |
| Keyword(4) | Radio anechoic chamber |
| Keyword(5) | Immunity |
| Keyword(6) | EMC |
| 1st Author's Name | Hiroshi KOYAMA |
| 1st Author's Affiliation | Communication EMC Lab., Graduate School, Musashi Institute of Technology() |
| 2nd Author's Name | Masamitsu TOKUDA |
| 2nd Author's Affiliation | Communication EMC Lab., Graduate School, Musashi Institute of Technology |
| 3rd Author's Name | Noboru FUJITA |
| 3rd Author's Affiliation | Wireless access business unit, Communications equipment division, Japan Radio Co., Ltd. |
| Date | 2008-07-17 |
| Paper # | EMCJ2008-27 |
| Volume (vol) | vol.108 |
| Number (no) | 132 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |