00993nam0 22002651i 450 SUN002967720041216120000.009-06-71746-920041206d1987 |0engc50 baengUS|||| |||||ˆThe ‰language of meetingsMalcolm Goodale; with illustrations by Mike GordonBostonThomson Heinlec1987128 p.24 cm.BostonSUNL000051Goodale, MalcolmSUNV024618251649Gordon, MikeSUNV024619ThomsonSUNV001830650ITSOL20181109RICASUN0029677UFFICIO DI BIBLIOTECA DEL DIPARTIMENTO DI GIURISPRUDENZA00 CONS XXIII.Cb.28 00 23779 UFFICIO DI BIBLIOTECA DEL DIPARTIMENTO DI GIURISPRUDENZA23779CONS XXIII.Cb.28paLanguage of meetings1431564UNICAMPANIA03756nam 2200541 450 991027101900332120221206094310.01-119-51645-51-119-51648-X1-119-51652-810.1002/9781119516521(CKB)4100000002964837(MiAaPQ)EBC5323673(CaSebORM)9781786301734(CaBNVSL)mat08607839(IDAMS)0b00006488a05dd2(IEEE)8607839(EXLCZ)99410000000296483720190417d2017 uy engurcnu||||||||rdacontentrdamediardacarrierWi-fi integration to the 4G mobile network /André Perez1st editionLondon :ISTE Ltd. ;Hoboken, NJ :John Wiley & Sons, Inc.,2018.[Piscataqay, New Jersey] :IEEE Xplore,[2018]1 online resource (255 pages) illustrations (some color), tablesNetworks and telecommunications series1-78630-173-3 Includes bibliographical references and index.Chapter 1: Wi-Fi Technology -- The MAC Layer; Chapter 2: Wi-Fi Technology -- 802.11a / g Interfaces; Chapter 3: Wi-Fi Technology -- The 802.11n Interface; Chapter 4: Wi-Fi Technology -- The 802.11ac Interface; Chapter 5: The Wi-Fi Interface-Based Architecture; Chapter 6: Data Authentication and Protection; Chapter 7: Tunneling and Handover; Chapter 8: Network Discovery and Selection.The adoption of smartphones has had as a corollary the use of services that require streaming, such as video streaming, which is a constraint for the 4G mobile network. The integration of the network of Wi-Fi hotspots deployed by the operators adds capacity to the 4G mobile network. The use of Wi-Fi technology in carrier networks is the result of developments coordinated by the IEEE, WFA and WBA standardization bodies. For its part, the 3GPP standardization body has been working to integrate Wi-Fi technology into the 4G mobile network. The first part of this book presents the characteristics of the Wi-Fi radio interface. The different IEEE 802.11b / g / n / ac physical layers characterize the implementation in the 2.4 GHz ISM frequency bands and U- NII at 5 GHz. The MAC layer defines a number of media access procedures such as scanning, associating, or transferring data. The second part of this book deals with the architecture of the 4G network based on the Wi-Fi interface. This architecture defines several models corresponding, on the one hand, to Wi-Fi access controlled or not, On the other hand, to a handover controlled by the network or by the mobile. The integration of Wi-Fi technology resulted in a redefinition of attachment and session set-up procedures. Smartphones have the ability to activate simultaneously the two radio interfaces, LTE and Wi-Fi, which allows to direct certain services to one and / or the other of the interfaces. The ANDSF and HotSpot 2.0 functions provide the mobile with rules for network selection and traffic control to determine which traffic is to be routed to what type of interface.Networks and telecommunications series.TelecommunicationTechnological innovationsWireless communication systemsTelecommunicationTechnological innovations.Wireless communication systems.384.0112Perez Andre871906CaBNVSLCaBNVSLCaBNVSLBOOK9910271019003321Wi-fi integration to the 4G mobile network2817540UNINA