Signal Statistics based Multiple AP Detection for Smart Spectrum Sharing in LTE-U/Wi-Fi Coexistence

Ahmed F., ARSLAN H.

93rd IEEE Vehicular Technology Conference, VTC 2021-Spring, Virtual, Online, 25 - 28 Nisan 2021, cilt.2021-April identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 2021-April
  • Doi Numarası: 10.1109/vtc2021-spring51267.2021.9448828
  • Basıldığı Şehir: Virtual, Online
  • Anahtar Kelimeler: LTE-U/Wi-Fi coexistence, second-order signal statistics, smart spectrum sharing, optimal detector
  • İstanbul Medipol Üniversitesi Adresli: Evet

Özet

For existing IEEE 802.11ax and futurist Wi-Fi standards, one of the major challenges is fair coexistence with LTE-Unlicensed/5G-New Radio (LTE-U/5G-NR) and other internet of things (IoT) paradigms. An algorithm is developed for multiple Wi-Fi small cell networks, coexisting with the LTE-U network over the unlicensed band for smart spectrum sharing. An optimal detector is designed based on second-order statistics (SOS) of OFDM signals and using singular value decomposition (SVD) method. Furthermore, theoretical expressions are derived for the detection and the false alarm probabilities. For spectrum access and sharing, flexible carrier sensing adaptive transmission (CSAT) framework and algorithm are designed. Lastly, the simulation results show the distinction of the proposed approach over the conventional detectors.