WiMAX: Applications (WiMAX Handbook)

The emerging WiMAX system satisfies the growing need for high data-rate applications such as voiceover IP, video conferencing, interactive gaming, and multimedia streaming. WiMAX deployments not only serve residential and enterprise users but can also be deployed as a backhaul for Wi-Fi hotspots or 3G cellular towers. By providing affordable wireless broadband access, the technology of WiMAX will revolutionize broadband communications in the developed world and bridge the digital divide in developing countries.

The book describes the logical architecture of IEEE In addition, the book examines the backhaul requirements of a large fixed wireless network and the problem of centralized routing and scheduling for IEEE With the revolutionary technology of WiMAX, the lives of many will undoubtedly improve, thereby leading to greater economic empowerment. Burbank and William T. Practical Network Design Techniques: The Handbook of Optical Communication Networks. Enabling Technologies and Services. The Bookshelf application offers access: Offline Computer — Download Bookshelf software to your desktop so you can view your eBooks with or without Internet access.

The country you have selected will result in the following: Product pricing will be adjusted to match the corresponding currency. The title will be removed from your cart because it is not available in this region. A point-to-point bridge interconnects two buildings having different networks. For example, a wireless LAN bridge can interface with an Ethernet network directly to a particular access point as shown in the following image. This topology is used to connect three or more LANs that may be located on different floors in a building or across buildings as shown in the following image.

This network is an independent local area network that is not connected to a wired infrastructure and in which all stations are connected directly to one another as shown in the following image. Wireless technologies can be classified in different ways depending on their range. Each wireless technology is designed to serve a specific usage segment.

The requirements for each usage segment are based on a variety of variables, including Bandwidth needs, Distance needs and Power. These networks provide a very fast data speed compared with the data rates of mobile telecommunications technology, and their range is also extensive. It is a type of local area network that uses high-frequency radio waves rather than wires to communicate between nodes. These networks provide a very fast data speed compared with the data rates of mobile telecommunications technology, and their range is very limited.

This network enables you to access the Internet and multimedia streaming services via a wireless region area network WRAN.

These networks provide a very fast data speed compared with the data rates of mobile telecommunication technology as well as other wireless network, and their range is also extensive. Lost packets and atmospheric interference are recurring problems of the wireless protocols. Basic network security mechanisms like the service set identifier SSID and Wireless Equivalency Privacy WEP ; these measures may be adequate for residences and small businesses, but they are inadequate for the entities that require stronger security.

Range is a function of antenna design and power. Now a days the range of wireless is extended to tens of miles so this should not be an issue any more. Broadband wireless is a technology that promises high-speed connection over the air. It uses radio waves to transmit and receive data directly to and from the potential users whenever they want it.

WBA is a point-to-multipoint system which is made up of base station and subscriber equipment. Instead of using the physical connection between the base station and the subscriber, the base station uses an outdoor antenna to send and receive high-speed data and voice-to-subscriber equipment. WBA offers an effective, complementary solution to wireline broadband, which has become globally recognized by a high percentage of the population.

Wi-Fi stands for Wi reless Fi delity. WiMAX is one of the hottest broadband wireless technologies around today. WiMAX systems are expected to deliver broadband access services to residential and enterprise customers in an economical way. More strictly, WiMAX is an industry trade organization formed by leading communications, component, and equipment companies to promote and certify compatibility and interoperability of broadband wireless access equipment that conforms to the IEEE WiMAX would operate similar to WiFi, but at higher speeds over greater distances and for a greater number of users.

WiMAX - Quick Guide

WiMAX has the ability to provide service even in areas that are difficult for wired infrastructure to reach and the ability to overcome the physical limitations of traditional wired infrastructure. WiMAX is to A certification that denotes interoperability of equipment built to the IEEE WiMAX is such an easy term that people tend to use it for the It can be used to connect WiMAX is expected to offer initially up to about 40 Mbps capacity per wireless channel for both fixed and portable applications, depending on the particular technical configuration chosen, enough to support hundreds of businesses with T-1 speed connectivity and thousands of residences with DSL speed connectivity.

WiMAX can support voice and video as well as Internet data. WiMax developed to provide wireless broadband access to buildings, either in competition to existing wired networks or alone in currently unserved rural or thinly populated areas. WiMAX is also intended to provide broadband connectivity to mobile devices.

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It would not be as fast as in these fixed applications, but expectations are for about 15 Mbps capacity in a 3 km cell coverage area. With WiMAX, users could really cut free from today's Internet access arrangements and be able to go online at broadband speeds, almost wherever they like from within a MetroZone. WiMAX could potentially be deployed in a variety of spectrum bands: WiMAX can satisfy a variety of access needs. Potential applications include extending broadband capabilities to bring them closer to subscribers, filling gaps in cable, DSL and T1 services, WiFi, and cellular backhaul, providing last meter access from fibre to the curb and giving service providers another cost-effective option for supporting broadband services.

WiMAX can support very high bandwidth solutions where large spectrum deployments i. WiMAX can help service providers meet many of the challenges they face due to increasing customer demands without discarding their existing infrastructure investments because it has the ability to seamlessly interoperate across various network types. WiMAX can provide wide area coverage and quality of service capabilities for applications ranging from real-time delay-sensitive voice-over-IP VoIP to real-time streaming video and non-real-time downloads, ensuring that subscribers obtain the performance they expect for all types of communications.

WiMAX, which is an IP-based wireless broadband technology, can be integrated into both wide-area third-generation 3G mobile and wireless and wireline networks allowing it to become part of a seamless anytime, anywhere broadband access solution. A standard by itself is not enough to enable mass adoption.

WiMAX has stepped forward to help solve barriers to adoption, such as interoperability and cost of deployment. WiMAX is similar to the wireless standard known as Wi-Fi, but on a much larger scale and at faster speeds. We can compare it with Wi-Fi based on the following factors. However, both are IEEE standards. Wi-Fi typically provides local network access for a few hundred feet with the speed of up to 54 Mbps, a single WiMAX antenna is expected to have a range of up to 40 miles with the speed of 70 Mbps or more.

Fixed channel sizes 20MHz. Flexible channel sizes from 1.

WiMAX: Applications - CRC Press Book

WiMAX is a wireless broadband solution that offers a rich set of features with a lot of flexibility in terms of deployment options and potential service offerings. Here a small antenna on your computer connects to the WiMAX tower. The line-of-sight connection is stronger and more stable, so it's able to send a lot of data with fewer errors. Line-of-sight transmissions use higher frequencies, with ranges reaching a possible 66 GHz.

WiMAX is capable of supporting very high peak data rates. WiMAX has a scalable physical-layer architecture that allows for the data rate to scale easily with available channel bandwidth.

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This scaling may be done dynamically to support user roaming across different networks that may have different bandwidth allocations. WiMAX supports a number of modulation and forward error correction FEC coding schemes and allows the scheme to be changed as per user and per frame basis, based on channel conditions.

WiMAX supports automatic retransmission requests ARQ at the link layer for connections that require enhanced reliability.

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ARQ-enabled connections require each transmitted packet to be acknowledged by the receiver; unacknowledged packets are assumed to be lost and are retransmitted. Both uplink and downlink resource allocation are controlled by a scheduler in the base station.

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Capacity is shared among multiple users on a demand basis, using a burst TDM scheme. The WiMAX solution has a number of hooks built into the physical-layer design, which allows for the use of multiple-antenna techniques, such as beamforming, space-time coding, and spatial multiplexing. The WiMAX MAC layer has a connection-oriented architecture that is designed to support a variety of applications, including voice and multimedia services.