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Wireless Network-1 lecture-02 6 th  semester 2021/1400

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History of wireless network Wireless network  standards

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At  first the history of wireless return in 1800.  Radio  wave by Heinrich Rudolf Hers in  Hamburg(1888 ).  Radio  wave in 1894 usage for communication.  Marchese  	Guglielmo 	Marconi 	expand 	the  microwave  in 2 miles.  Microwave  develop in second war world in America.  In  1972 a group of researcher create a WLAN.

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Infrared, Bluetooth, IEEE,  Wi-Fi, Wi-Max…are  the most important kinds of network.  They have in every where very important.  The levels of wireless are very  unknown.

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At first the intuition of  infrared  is Issaq Newton and  William Hershel.  Hershel  was the first person which discover the infrared in 1800.  Infrared distance is very least this was the first deficiency which that become rare.

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The name of Bluetooth taken from king of  Denmark  which he live in 10 th  age.  That can send the data in 10 meters.  It was created by  Erikson  company in 1994 and that use by  Erikson,   Nokia , Intel and  Toshiba  in  1998.

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Cost is low  The low  electrical  point  It use from  Battery  device  That is very easy and  simple.

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IEEE (Institute of Electrical and Electronics Engineers)

IEEE is professional world-wide society for electronics and electrical engineers.  This technology expand in every kinds of networks.

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That release in 1990 by IEEE  institute.  Speed=1mbps,  2mbps. The Chanel frequency is  2.4GHz.

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The cost of this standard is up than IEEE 802.11  Speed=54mbps  The Chanel frequency is 5GHz

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Speed=11-22 mbps  The Chanel frequency is  2.4 GHz  This standard can’t to relation to next standard because they don’t have compatibility.

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Speed=54 mbps  This  standard  can work in 100 meters.   This standard is compound of two next standards.   This standard is compatible with tow kinds of next.

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The newest version of IEEE is  802.11n  speed= up to 100mbps  It can work with 2.4 and 5 GHz  It can send and receive data in 540mbps and can work 250 meters.

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It is one kinds of IEEE standard and record to IEEE 802.11x  It is Wireless fidelity  It is easy to Installation  It can work 100 feet.

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It 	is 	taken 	from 	 ( World 	Wide  Interoperability for Microwave Access )  This  technology  can connect  larges  of network  It’s the same of  Wi-Fi  but it is very powerful than  that. T1/E1  or DSL is one kinds of that.

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It  standard  to IEEE 802.16  Frequency = 10.66GHz  Than in 2004 become 2-11 GHz

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Wi-max Tower: which that setup in block of apartment and it send data to 30000 miles,  nearly (8000 KM 2 ).  Wi-max Receiver: it is include given microwave.

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Introduction to Wireless network and mobile systems  Wireless n networking technology,  S teve Rackley.

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Phone, WhatsApp: 0093772730147 0093744603483 Email: S_anwer.matin@yahoo.com Facebook:  www.facebook.com/ سیدانور  متین

Wireless Network-1
lecture-02
6th semester

2021/1400

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 Phone, WhatsApp: 0093772730147 0093744603483 Email: S_anwer.matin@yahoo.com Facebook:  www.facebook.com/ سیدانور  متین

Wireless Network-1 lecture-02 6th semester 2021/1400

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