This is a brief timeline of Wireless technologies development :

1896 Guglielmo Marconi develops the first wireless telegraph system

1927 First commercial radiotelephony service operated between Britain and the US

1946 First car-based cellphone set up in St. Louis, exploitation ‘push-to-talk’ technology

1948 Claude Shannon publishes two benchmark papers on Information Theory, containing the basis for data compression (source encoding) and error detection and correction (channel encoding)

1950 TD-2, the first terrestrial microwave telecom system, established to support 2400 telephone circuits

1950s Late in the decade, several ‘push-to-talk’ mobile systems established in big cities for CB-radio, taxis, etc.

1950s Late in the decade, the first paginating access control equipment (PACE) paging systems established

1960s Early in the decade, the Improved Mobile Telephone System (IMTS) built with simultaneous transmit and receive, more channels, and greater power

1962 The first communication satellite, Telstar, launched into orbit

1964 The International Telecommunications Satellite Consortium (INTELSAT) established, and in 1965 launches the Early Bird geostationary satellite

1968 Defense Advanced Research Projects Agency – US (DARPA) selected BBN to develop the Advanced Research Projects Agency Network (ARPANET), the father of the modern Internet

1970s Packet switching emerges as an efficient means of data communications, with the X.25 standard emerging late in the decade

1977 The Advanced Mobile Phone System (AMPS), invented by Bell Labs, first installed in the US with geographic regions divided into ‘cells’ (i.e. cellular telephone)

1983 January 1, TCP/IP selected as the official protocol for the ARPANET, leading to rapid growth

1990 Motorola files FCC application for permission to launch 77 (revised down to 66) low earth orbit communication satellites, known as the Iridium System (element 77 is Iridium)

1992 One-millionth host connected to the Internet, with the size now approximately doubling every year

1993 Internet Protocol version 4 (IPv4) established for reliable transmission over the Internet in conjunction with the Transport Control Protocol (TCP)

1994–5 FCC licenses the Personal Communication Services (PCS) spectrum (1.7 to 2.3 GHz) for $7.7 billion

1998 Ericsson, IBM, Intel, Nokia, and Toshiba announce they will join to make grow Bluetooth for wireless data exchange between hand-held computers or cellphones and stationary computers

1990s Late in the decade, Virtual Private Networks (VPNs) based on the Layer 2 Tunneling Protocol (L2TP) and IPSEC security techniques went available

2000 802.11(b)-based networks are in popular demand

2001 Wired Equivalent Privacy (WEP) Security is cracked.

The search for greater security for 802.11(x)-based networks growths

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