| Project/Area Number |
15K18067
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Communication/Network engineering
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | マルチユーザー通信 / 無線LAN / IEEE802.11 / アクセス方式 / IEEE 802.11ax / UL OFDMA random access / multiple access protocol / multiuser / OFDMA / random access / uplink multi-user |
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| Outline of Final Research Achievements |
During the three year study, we designed an efficient implementation of the 802.11ax Wireless LAN MAC. Specifically, our design focused on the UL OFDMA random access which is a new feature introduced in 802.11ax. This feature improves the users' Wireless LAN experience in very user dense environments by allowing them to transmit at the same time even without prior channel reservation. We presented our results for maximizing the efficiency of this feature both in domestic and international conferences and contributed to the 802.11ax international standardization. One of our contribution done jointly with researchers in the industry was subsequently accepted by the IEEE task group ax to be included in the next generation standard. As a future research direction, carrier sensing combined with UL OFDMA can be used to further improve efficiency through collision avoidance.
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