WiMAX - Revision history

Goedvola at 03:37, 14 April 2008

2008-04-14T03:37:11Z

← Older revision		Revision as of 03:37, 14 April 2008
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	*A WiMAX tower		*A WiMAX tower
	*A WiMAX receiver		*A WiMAX receiver
-	WiMAX towers can connect directly to the internet or another WiMAX tower, using line-of-sight communication. A connection to a second tower is often called a backhaul. By using multiple towers large, remote areas can receive WiMAX signals.<sup>[4]</sup><BR>	+	WiMAX towers can connect directly to the internet or another WiMAX tower, using line-of-sight communication. A connection to a second tower is often called a backhaul. By using multiple towers, large, remote areas can receive WiMAX signals.<sup>[4]</sup><BR>

	WiMAX provides two forms of wireless service:		WiMAX provides two forms of wireless service:
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	* [http://en.wikipedia.org/wiki/WiMAX "WiMAX" on Wikipedia.org]		* [http://en.wikipedia.org/wiki/WiMAX "WiMAX" on Wikipedia.org]

-	[[User:Goedvola\|Goedvola]] 23:35, 13 April 2008 (EDT)	+	[[User:Goedvola\|Goedvola]] 23:37, 13 April 2008 (EDT)

Goedvola at 03:35, 14 April 2008

2008-04-14T03:35:38Z

← Older revision		Revision as of 03:35, 14 April 2008
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	* [http://en.wikipedia.org/wiki/WiMAX "WiMAX" on Wikipedia.org]		* [http://en.wikipedia.org/wiki/WiMAX "WiMAX" on Wikipedia.org]

-	[[User:Goedvola\|Goedvola]] 23:29, 13 April 2008 (EDT)	+	[[User:Goedvola\|Goedvola]] 23:35, 13 April 2008 (EDT)

Goedvola at 03:34, 14 April 2008

2008-04-14T03:34:43Z

← Older revision		Revision as of 03:34, 14 April 2008
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	*Providing a wireless alternative to cable and DSL for last mile broadband access.		*Providing a wireless alternative to cable and DSL for last mile broadband access.
	*Providing high-speed data and telecommunications services.		*Providing high-speed data and telecommunications services.
-	*Providing a diverse source of Internet connectivity as part of a business continuity plan. That is, if a business has a fixed and a wireless Internet connection, especially from unrelated providers, they are unlikely to be affected by the same service outage.

	===Broadband access===		===Broadband access===

Goedvola at 03:34, 14 April 2008

2008-04-14T03:34:03Z

← Older revision		Revision as of 03:34, 14 April 2008
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	*A WiMAX tower		*A WiMAX tower
	*A WiMAX receiver		*A WiMAX receiver
-	WiMAX towers can connect directly to the internet or another WiMAX tower, using line-of-sight communication. A connection to a second tower is often called a backhaul. By using multiple towers large, remote areas can receive WiMAX signals.<sup>[4]</sup>	+	WiMAX towers can connect directly to the internet or another WiMAX tower, using line-of-sight communication. A connection to a second tower is often called a backhaul. By using multiple towers large, remote areas can receive WiMAX signals.<sup>[4]</sup><BR>

	WiMAX provides two forms of wireless service:		WiMAX provides two forms of wireless service:
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	* Adding an extra QoS class (enhanced real-time Polling Service) more appropriate for VoIP applications.		* Adding an extra QoS class (enhanced real-time Polling Service) more appropriate for VoIP applications.

-	802.16d vendors point out that fixed WiMAX offers the benefit of available commercial products and implementations optimized for fixed access. It is a popular standard among alternative service providers and operators in developing areas due to its low cost of deployment and advanced performance in a fixed environment. Fixed WiMAX is also seen as a potential standard for backhaul of wireless base stations such as cellular, Wi-Fi or even Mobile WiMAX.	+	"802.16d vendors point out that fixed WiMAX offers the benefit of available commercial products and implementations optimized for fixed access. It is a popular standard among alternative service providers and operators in developing areas due to its low cost of deployment and advanced performance in a fixed environment. Fixed WiMAX is also seen as a potential standard for backhaul of wireless base stations such as cellular, Wi-Fi or even Mobile WiMAX."<sup>[1]</sup>

	==Future development==		==Future development==
		+	The long term goal for the evolution of WiMAX is to achieve 100Mbps for mobile devices and 1 Gbps for fixed devices.

		+	"Since the evolution of core air-link technologies has approached the practical limits imposed by Shannon's Theorem, the evolution of wireless has embarked on pursuit of the 3X to 10X+ greater bandwidth and network efficiency by advances in the spatial and smart wireless broadband networking technologies."<sup>[1]</sup>

	==Current deployments==		==Current deployments==
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	[[Wireless Network Security]]<BR>		[[Wireless Network Security]]<BR>
	[[Network-Based Software Architectures]]<BR>		[[Network-Based Software Architectures]]<BR>
		+	[[Satellite Networking]]

	== References ==		== References ==

Goedvola at 03:29, 14 April 2008

2008-04-14T03:29:31Z

← Older revision		Revision as of 03:29, 14 April 2008
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-	'''WiMAX''', the Worldwide Interoperability for Microwave Access, enables the delivery of wireless broadband services over long distances. WiMAX is based upon the IEEE 802.16 standard, also called WirelessMAN, which was developed for non-line-of-sight (LoS) communication. WiMAX technology can provide connectivity in many ways, from point-to-point links to full mobile cellular type communication. The name WiMAX was created by the WiMAX forum which was formed in June 2001.The WiMAX forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL." WiMAX technology has already been incorporated into notebook computers and PDAs to deliver high speed mobile Internet services.	+	'''WiMAX''', the Worldwide Interoperability for Microwave Access, enables the delivery of wireless broadband services over long distances. WiMAX is based upon the IEEE 802.16 standard, also called WirelessMAN, which was developed for non-line-of-sight (LoS) communication. WiMAX technology can provide connectivity in many ways, from point-to-point links to full mobile cellular type communication. The name WiMAX was created by the WiMAX forum which was formed in June 2001.The WiMAX forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL." WiMAX technology has already been incorporated into notebook computers and PDAs to deliver high speed mobile Internet services.<sup>[1]</sup>

	==Uses==		==Uses==
-	High speed bandwidth and wireless connectivity make WiMAX suitable for the following potential applications:	+	High speed bandwidth and wireless connectivity make WiMAX suitable for the following potential applications:<sup>[1]</sup>
	*Connecting Wi-Fi hotspots with each other and to other parts of the Internet.		*Connecting Wi-Fi hotspots with each other and to other parts of the Internet.
	*Providing a wireless alternative to cable and DSL for last mile broadband access.		*Providing a wireless alternative to cable and DSL for last mile broadband access.
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	===Broadband access===		===Broadband access===
	Many companies are examining and testing WiMAX technology for “last mile” connectivity at high data rates. The resulting competition with cable and DSL providers may bring lower prices for home and business users where internet connectivity was economically unavailable.		Many companies are examining and testing WiMAX technology for “last mile” connectivity at high data rates. The resulting competition with cable and DSL providers may bring lower prices for home and business users where internet connectivity was economically unavailable.
-
-	"WiMAX access was used to assist with communications in Aceh, Indonesia, after the tsunami in December 2004. All communication infrastructure in the area, other than Ham Radio, was destroyed, making the survivors unable to communicate with people outside the disaster area and vice versa. WiMAX provided broadband access that helped regenerate communication to and from Aceh."<sup>[1]</sup>

	===Mobile handset applications===		===Mobile handset applications===
	Cellular companies are evaluation WiMAX technology to increases mobile bandwidth for a variety of data-intensive applications.		Cellular companies are evaluation WiMAX technology to increases mobile bandwidth for a variety of data-intensive applications.
		+	Sprint Nextel – Announced investment of about US$ 5 billion in WiMAX technology over the next few years<sup>[2]</sup>. WiMAX networks will go live for a test launch in Chicago, Baltimore, and Washington DC. Commercial lauches are still expected to happen during spring of 2008.<sup>[3]</sup>

-	~~Sprint Nextel – Announced investment of about US$ 5 billion in WiMAX technology over the next few years~~[2]. WiMAX ~~networks will go live for a test launch in Chicago, Baltimore, and Washington DC. Commercial lauches are still expected to happen during spring of 2008~~.[3]	+	== Technical Information ==
		+	[[Image:Wimax-diagram.gif\|thumb\|250px\|right\| How WiMAX works.<sup>[4]</sup>]]
		+	===How it works===

		+	Practically WiMAX operates similar to Wi-Fi but a much higher speeds and over greater distances. A WiMAX system consists of two parts:
		+	*A WiMAX tower
		+	*A WiMAX receiver
		+	WiMAX towers can connect directly to the internet or another WiMAX tower, using line-of-sight communication. A connection to a second tower is often called a backhaul. By using multiple towers large, remote areas can receive WiMAX signals.<sup>[4]</sup>

-	== ~~Technical Information~~ ==	+	WiMAX provides two forms of wireless service:
-	~~[[Image:Wimax-diagram~~.~~gif\|thumb\|250px\|right\| How~~ WiMAX ~~works~~.<sup>[3]</sup>]]	+	*Non-line-of-sight, much like Wi-Fi, where a small antenna on your computer connects to the tower. These kinds of transmissions use a low frequency range, between 2 GHz to 11GHz.
		+	*Line-of-sight, a fixed dish antenna points directly at the receiver’s dish. This signal is much stronger and uses higher frequencies, reaching a possible maximum frequency of 66GHz.<sup>[4]</sup>
		+
		+	===Specifications===
		+	WiMAX technology can be configured for many applications. Typically WiMAX has a broadcast radius of three to ten kilometers with bandwidth up to 40 Mbps per channel. This is enough bandwidth to support hundreds of T-1 speed connections and thousands of residential DSL speed connections.<sup>[4]</sup>
		+
		+	For mobile WiMAX networks, speeds up to 15 Mbps within a radius of three kilometers can be achieved.<sup>[5]</sup>

	===Comparison with Wi-Fi===		===Comparison with Wi-Fi===
		+	"Due to the fact both WiMAX and Wi-Fi begin with the same two letters, are based upon IEEE standards beginning with "802.", and both have a connection to wireless connectivity and the Internet, comparisons and confusion between the two are frequent. Despite this, the two standards are aimed at different applications."<sup>[1]</sup>
		+
		+	WiMAX uses the IEEE 802.16 standard which is a newer standard of wireless networking than 802.11. Wi-Fi operated in the unlicensed spectrum (2.4 or 5.8 GHz) making in much cheaper to deploy.
		+	*WiMAX has a much higher bandwidth at a maximum 70 Mbps versus Wi-Fi at 54Mbps.
		+	* WiMAX has a range of up to 50 kilometers compared to Wi-Fi at around 30 meters.
		+	*WiMAX and Wi-Fi have different Quality of Service (QoS) mechanisms. Wi-Fi uses a packet priority system while WiMAX can setup connections based on scheduling algorithms.
		+	*WiMAX is highly scalable.

	== Standards ==		== Standards ==
-	Current WiMAX technology called Mobile WiMAX, is based on the IEEE Std 802.16e-2005<sup>[1]</sup>. This IEEE standard is an amendment of IEEE Std 802.16-2004<sup>[2]</sup>, which means the actual standard is 802.16-2004 as amended by 802.16e-2005. Both standards need to be read together to understand them fully.	+	Current WiMAX technology called Mobile WiMAX, is based on the IEEE Std 802.16e-2005<sup>[7]</sup>. This IEEE standard is an amendment of IEEE Std 802.16-2004<sup>[8]</sup>, which means the actual standard is 802.16-2004 as amended by 802.16e-2005. Both standards need to be read together to understand them fully.
	IEEE Std 802.16-2004 addresses only fixed systems. It replaced IEEE Standards 802.16-2001, 802.16c-2002, and 802.16a-2003.		IEEE Std 802.16-2004 addresses only fixed systems. It replaced IEEE Standards 802.16-2001, 802.16c-2002, and 802.16a-2003.

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	== References ==		== References ==
		+	# [http://en.wikipedia.org/wiki/WiMAX WiMAX]. Wikipedia.org.
		+	# [http://www2.sprint.com/mr/cda_pkDetail.do?id=1260 4G Mobile Broadband]. sprint.com.
		+	# [http://www.brighthand.com/default.asp?newsID=13545 Sprint Preparing Soft Launch for WiMax Service]. brighthand.com.
		+	# [http://computer.howstuffworks.com/wimax.htm How WiMAX works]. howstuffworks.com.
		+	# [http://www.wimaxforum.org/technology/faq WiMAX Forum — Frequently Asked Questions]. wimaxforum.org.
		+	# [http://www.techwarelabs.com/articles/other/wimax_wifi/ WiMAX vs WiFi]. techwarelabs.com.
	# [http://www.ieee802.org/16/tge/ IEEE 802.16e Task Group (Mobile WirelessMAN®)]. ieee802.org.		# [http://www.ieee802.org/16/tge/ IEEE 802.16e Task Group (Mobile WirelessMAN®)]. ieee802.org.
	# [http://www.ieee802.org/16/tgd/ IEEE 802.16 Task Group d]. ieee802.org.		# [http://www.ieee802.org/16/tgd/ IEEE 802.16 Task Group d]. ieee802.org.
-	~~# [http://www.techwarelabs.com/articles/other/wimax_wifi/ WiMAX vs WiFi]~~

	== External links ==		== External links ==
-		+	* [http://en.wikipedia.org/wiki/Last_mile "Last mile" on Wikipedia.org]
		+	* [http://en.wikipedia.org/wiki/Backhaul_%28telecommunications%29 "Backhaul" on Wikipedia.org]
		+	* [http://en.wikipedia.org/wiki/Qos "QoS" on Wikipedia.org]
	* [http://www.wimaxday.net/ WiMAX Day]: An on-line journal of WiMAX news and information		* [http://www.wimaxday.net/ WiMAX Day]: An on-line journal of WiMAX news and information
	* [http://www.wimaxforum.org/ WiMAX Forum]		* [http://www.wimaxforum.org/ WiMAX Forum]
-	* [http://en.wikipedia.org/wiki/WiMAX WiMAX on Wikipedia.~~com~~]	+	* [http://en.wikipedia.org/wiki/WiMAX "WiMAX" on Wikipedia.org]

-	[[User:Goedvola\|Goedvola]] ~~14:~~23, 13 April 2008 (EDT)	+	[[User:Goedvola\|Goedvola]] 23:29, 13 April 2008 (EDT)

Goedvola at 21:15, 13 April 2008

2008-04-13T21:15:41Z

← Older revision		Revision as of 21:15, 13 April 2008
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	== Technical Information ==		== Technical Information ==
-	[[Image:Wimax-diagram.gif\|thumb\|250px\|right\| How WiMAX works.[3]]]	+	[[Image:Wimax-diagram.gif\|thumb\|250px\|right\| How WiMAX works.<sup>[3]</sup>]]

	===Comparison with Wi-Fi===		===Comparison with Wi-Fi===

Goedvola at 21:14, 13 April 2008

2008-04-13T21:14:57Z

← Older revision		Revision as of 21:14, 13 April 2008
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	== Technical Information ==		== Technical Information ==
		+	[[Image:Wimax-diagram.gif\|thumb\|250px\|right\| How WiMAX works.[3]]]
		+
	===Comparison with Wi-Fi===		===Comparison with Wi-Fi===

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	# [http://www.ieee802.org/16/tge/ IEEE 802.16e Task Group (Mobile WirelessMAN®)]. ieee802.org.		# [http://www.ieee802.org/16/tge/ IEEE 802.16e Task Group (Mobile WirelessMAN®)]. ieee802.org.
	# [http://www.ieee802.org/16/tgd/ IEEE 802.16 Task Group d]. ieee802.org.		# [http://www.ieee802.org/16/tgd/ IEEE 802.16 Task Group d]. ieee802.org.
		+	# [http://www.techwarelabs.com/articles/other/wimax_wifi/ WiMAX vs WiFi]

	== External links ==		== External links ==

Goedvola at 21:02, 13 April 2008

2008-04-13T21:02:56Z

← Older revision		Revision as of 21:02, 13 April 2008
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	802.16d vendors point out that fixed WiMAX offers the benefit of available commercial products and implementations optimized for fixed access. It is a popular standard among alternative service providers and operators in developing areas due to its low cost of deployment and advanced performance in a fixed environment. Fixed WiMAX is also seen as a potential standard for backhaul of wireless base stations such as cellular, Wi-Fi or even Mobile WiMAX.		802.16d vendors point out that fixed WiMAX offers the benefit of available commercial products and implementations optimized for fixed access. It is a popular standard among alternative service providers and operators in developing areas due to its low cost of deployment and advanced performance in a fixed environment. Fixed WiMAX is also seen as a potential standard for backhaul of wireless base stations such as cellular, Wi-Fi or even Mobile WiMAX.
		+
		+	==Future development==
		+

	==Current deployments==		==Current deployments==

Goedvola at 20:41, 13 April 2008

2008-04-13T20:41:54Z

← Older revision		Revision as of 20:41, 13 April 2008
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	===Mobile handset applications===		===Mobile handset applications===
		+	Cellular companies are evaluation WiMAX technology to increases mobile bandwidth for a variety of data-intensive applications.
		+
		+	Sprint Nextel – Announced investment of about US$ 5 billion in WiMAX technology over the next few years[2]. WiMAX networks will go live for a test launch in Chicago, Baltimore, and Washington DC. Commercial lauches are still expected to happen during spring of 2008.[3]
		+

	== Technical Information ==		== Technical Information ==

Goedvola at 20:08, 13 April 2008

2008-04-13T20:08:47Z

← Older revision		Revision as of 20:08, 13 April 2008
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	==Uses==		==Uses==
		+	High speed bandwidth and wireless connectivity make WiMAX suitable for the following potential applications:
		+	*Connecting Wi-Fi hotspots with each other and to other parts of the Internet.
		+	*Providing a wireless alternative to cable and DSL for last mile broadband access.
		+	*Providing high-speed data and telecommunications services.
		+	*Providing a diverse source of Internet connectivity as part of a business continuity plan. That is, if a business has a fixed and a wireless Internet connection, especially from unrelated providers, they are unlikely to be affected by the same service outage.
		+
	===Broadband access===		===Broadband access===
	Many companies are examining and testing WiMAX technology for “last mile” connectivity at high data rates. The resulting competition with cable and DSL providers may bring lower prices for home and business users where internet connectivity was economically unavailable.		Many companies are examining and testing WiMAX technology for “last mile” connectivity at high data rates. The resulting competition with cable and DSL providers may bring lower prices for home and business users where internet connectivity was economically unavailable.