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Wireless network
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== History == === Wireless networks === The first professional wireless network was developed under the brand [[ALOHAnet]] in 1969 at the University of Hawaii and became operational in June 1971. The first commercial wireless network was the [[WaveLAN]] product family, developed by [[NCR Corporation|NCR]] in 1986. *1973 {{ndash}} Ethernet 802.3 *1991 {{ndash}} [[2G]] cell phone network *June 1997 {{ndash}} [[802.11]] "[[Wi-Fi]]" protocol first release *1999 {{ndash}} 803.11 [[VoIP]] integration === Underlying technology === {{Main|Wireless revolution}} Advances in [[MOSFET]] (MOS transistor) wireless technology enabled the development of digital [[wireless networks]]. The wide adoption of [[RF CMOS]] ([[radio frequency]] [[CMOS]]), [[power MOSFET]] and [[LDMOS]] (lateral diffused MOS) devices led to the development and proliferation of digital wireless networks by the 1990s, with further advances in MOSFET technology leading to increasing [[Bandwidth (computing)|bandwidth]] in the 2000s ([[Edholm's law]]).<ref name="Baliga">{{cite book |last1=Baliga |first1=B. Jayant |author1-link=B. Jayant Baliga |title=Silicon RF Power MOSFETS |date=2005 |publisher=[[World Scientific]] |isbn=9789812561213 |url=https://books.google.com/books?id=StJpDQAAQBAJ}}</ref><ref name="Asif">{{cite book |last1=Asif |first1=Saad |title=5G Mobile Communications: Concepts and Technologies |date=2018 |publisher=[[CRC Press]] |isbn=9780429881343 |pages=128β134 |url=https://books.google.com/books?id=yg1mDwAAQBAJ&pg=PT128}}</ref><ref name="O'Neill">{{cite journal |last1=O'Neill |first1=A. |title=Asad Abidi Recognized for Work in RF-CMOS |journal=IEEE Solid-State Circuits Society Newsletter |date=2008 |volume=13 |issue=1 |pages=57β58 |doi=10.1109/N-SSC.2008.4785694 |issn=1098-4232}}</ref> Most of the essential elements of wireless networks are built from MOSFETs, including the mobile [[transceiver]]s, [[base station]] modules, [[Router (computing)|routers]], [[RF power amplifier]]s,<ref name="Asif"/> [[telecommunication circuit]]s,<ref name="Colinge2016">{{cite book |last1=Colinge |first1=Jean-Pierre |last2=Greer |first2=James C.|title=Nanowire Transistors: Physics of Devices and Materials in One Dimension |date=2016 |publisher=[[Cambridge University Press]] |isbn=9781107052406 |page=2 |url=https://books.google.com/books?id=FvjUCwAAQBAJ&pg=PA2}}</ref> [[RF circuit]]s, and [[radio transceiver]]s,<ref name="O'Neill"/> in networks such as [[2G]], [[3G]],<ref name="Baliga"/> and [[4G]].<ref name="Asif"/>
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