1. Cisco Visual Networking Index: Global Mobile Data Traffic Forecast Update, 2016–2021http://www.cisco.com/en/US/solutions/collateral/ns341/ns525/ns537/ns705/ns827/white_paper_c11-520862.pdf
2. Evolution of LTE in release 13. 3GPP News RP-170848, 3rd Generation Partnership Project (3GPP)https://www.3gpp.org/ftp/tsg_ran/TSG_RAN/TSGR_75/Docs/RP-170848.zip
3. Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications,1999
4. MulteFire Release 1.1 Technical Overview. White paper, MulteFire Alliancehttps://www.multefire.org/wp-content/uploads/MulteFire_Release-1.1_WhitePaper_03DEC2018.pdf
5. Physical Layer Procedures for Shared Spectrum Channel Access. Technical specification (TS) 37.213, 3rd Generation Partnership Project (3GPP)https://www.3gpp.org/ftp//Specs/archive/37_series/37.213/37213-g30.zip