Implementation and Evaluation of Novel Architecture Using Optical Wireless for WLAN Control Plane
We propose a novel wireless control system architecture that divides the wireless service area into smaller optical cells and centrally controls the user equipment (UE) connections under each optical cell. The proposal transmits via IoT smart lighting an optical identifier (ID) specifying connection...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9547329/ |
| _version_ | 1818736229565333504 |
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| author | Ryota Shiina Shinya Tamaki Kazutaka Hara Tomohiro Taniguchi Shunsuke Saruwatari Takashi Watanabe |
| author_facet | Ryota Shiina Shinya Tamaki Kazutaka Hara Tomohiro Taniguchi Shunsuke Saruwatari Takashi Watanabe |
| author_sort | Ryota Shiina |
| collection | DOAJ |
| description | We propose a novel wireless control system architecture that divides the wireless service area into smaller optical cells and centrally controls the user equipment (UE) connections under each optical cell. The proposal transmits via IoT smart lighting an optical identifier (ID) specifying connection information to the UE with illuminance sensor. The received optical ID indicates the optimum connection destination. Two solutions are proposed to overcome the hardware restrictions faced by optical ID transmission/reception. Oversampled edge-excluded receiving scheme (OE) reduces the error rate; the signal is oversampled and each window subjected to majority decision. Optical ID reception with lower error rate than conventional approach is realized with a minimum received illuminance of just 8.5 lx (background illuminance 226.67 lx) and a modulation factor of 7 %. Fast optical ID authentication (FA) reduces the authentication cycle preceding optical ID reception by performing correlation calculation between the cyclic matrix and an optical ID list. FA shortens the authentication cycle by 62.5 % (1200 ms to 450 ms). Furthermore, an optical cell control algorithm (ScanLine-based/MinDist-based) is proposed to offset the deterioration in network quality created by non-uniform UE distribution. ScanLine-based algorithm controls optical cells in scanning line manner, while MinDist-based favors optical cells with the minimum distance from the access point (AP). It is confirmed that with an optical cell radius of 5 m or less, the capacity difference per user is reduced compared to the existing RSSI-based alternative while reducing the deterioration of total capacity in extremely biased user distribution scenarios. |
| first_indexed | 2024-12-18T00:33:50Z |
| format | Article |
| id | doaj.art-442fc744cb354aedacb34496cf033720 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-18T00:33:50Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-442fc744cb354aedacb34496cf0337202022-12-21T21:27:04ZengIEEEIEEE Access2169-35362021-01-01913361113362410.1109/ACCESS.2021.31153379547329Implementation and Evaluation of Novel Architecture Using Optical Wireless for WLAN Control PlaneRyota Shiina0https://orcid.org/0000-0002-0764-9756Shinya Tamaki1Kazutaka Hara2Tomohiro Taniguchi3Shunsuke Saruwatari4https://orcid.org/0000-0002-1625-5521Takashi Watanabe5https://orcid.org/0000-0002-3227-9048NTT Access Network Service Systems Laboratories, NTT Corporation, Tokyo, JapanNTT Access Network Service Systems Laboratories, NTT Corporation, Tokyo, JapanNTT Access Network Service Systems Laboratories, NTT Corporation, Tokyo, JapanNTT Access Network Service Systems Laboratories, NTT Corporation, Tokyo, JapanGraduate School of Engineering, Osaka University, Osaka, JapanGraduate School of Engineering, Osaka University, Osaka, JapanWe propose a novel wireless control system architecture that divides the wireless service area into smaller optical cells and centrally controls the user equipment (UE) connections under each optical cell. The proposal transmits via IoT smart lighting an optical identifier (ID) specifying connection information to the UE with illuminance sensor. The received optical ID indicates the optimum connection destination. Two solutions are proposed to overcome the hardware restrictions faced by optical ID transmission/reception. Oversampled edge-excluded receiving scheme (OE) reduces the error rate; the signal is oversampled and each window subjected to majority decision. Optical ID reception with lower error rate than conventional approach is realized with a minimum received illuminance of just 8.5 lx (background illuminance 226.67 lx) and a modulation factor of 7 %. Fast optical ID authentication (FA) reduces the authentication cycle preceding optical ID reception by performing correlation calculation between the cyclic matrix and an optical ID list. FA shortens the authentication cycle by 62.5 % (1200 ms to 450 ms). Furthermore, an optical cell control algorithm (ScanLine-based/MinDist-based) is proposed to offset the deterioration in network quality created by non-uniform UE distribution. ScanLine-based algorithm controls optical cells in scanning line manner, while MinDist-based favors optical cells with the minimum distance from the access point (AP). It is confirmed that with an optical cell radius of 5 m or less, the capacity difference per user is reduced compared to the existing RSSI-based alternative while reducing the deterioration of total capacity in extremely biased user distribution scenarios.https://ieeexplore.ieee.org/document/9547329/Wireless local area network hotspotoptical wireless communicationoptical cell operationwireless local area network control plane |
| spellingShingle | Ryota Shiina Shinya Tamaki Kazutaka Hara Tomohiro Taniguchi Shunsuke Saruwatari Takashi Watanabe Implementation and Evaluation of Novel Architecture Using Optical Wireless for WLAN Control Plane IEEE Access Wireless local area network hotspot optical wireless communication optical cell operation wireless local area network control plane |
| title | Implementation and Evaluation of Novel Architecture Using Optical Wireless for WLAN Control Plane |
| title_full | Implementation and Evaluation of Novel Architecture Using Optical Wireless for WLAN Control Plane |
| title_fullStr | Implementation and Evaluation of Novel Architecture Using Optical Wireless for WLAN Control Plane |
| title_full_unstemmed | Implementation and Evaluation of Novel Architecture Using Optical Wireless for WLAN Control Plane |
| title_short | Implementation and Evaluation of Novel Architecture Using Optical Wireless for WLAN Control Plane |
| title_sort | implementation and evaluation of novel architecture using optical wireless for wlan control plane |
| topic | Wireless local area network hotspot optical wireless communication optical cell operation wireless local area network control plane |
| url | https://ieeexplore.ieee.org/document/9547329/ |
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