WiMAX — разлика између измена

{{Треба превести}}

 

 

== Стандард ==

 

== Сличне технологије ==

 

 

== Техничке предности ==

 

 

What is important for business using this technology is to ensure that it is managed correctly.

 

WiMAX is referred to as „[[WiFi]] on steroids“. It has the potential to enable even more millions to access the [[Internet]] wirelessly, cheaply and easily. Proponents say that WiMAX wireless coverage will be measured in square kilometers/miles while that of WiFi is measured in square meters/yards. According to WiMAX promoters, a WiMAX base station would beam high-speed Internet connections to homes and businesses in a radius of up to 50 km (31 miles); these base stations will eventually cover an entire metropolitan area, making that area into a WMAN and allowing true wireless mobility within it, as opposed to hot-spot hopping required by WiFi. The proponents are hoping that the technology will eventually be used in [[notebook computer]]s and [[Personal Digital Assistant|PDA]]s. True roaming cell-like wireless broadband, however, is IEEE standard [[IEEE 802.20|802.20]], which is compatible with WiMAX.

 

WiMAX standard relies mainly on spectrum in the 2 to 11 GHz range. The WiMAX specification improves upon many of the limitations of the WiFi standard by providing increased bandwidth and stronger encryption. It also aims to provide connectivity to network endpoints without direct [[line of sight]] in some circumstances. The details of performance under non [[line of sight]] circumstances, however, are unclear, as they have yet to be demonstrated.

 

Products are expected to be announced second quarter of [[2005]].

As of 2004, major cities such as [[Los Angeles]] , [[New York]] , [[Boston]] , [[Providence]] RI, [[Seattle]] in the U.S.,and [[Dalian]] and [[Chengdu]] in China are already implementing WiMax.

Beyond the metro area rollouts (prev paragraph), WiMax is like WiFi in that you can 'roll your own'. Several vendors have some form of product now (2004), usually in a pre-standards-compliance stage so you can't reasonably expect multivendor interoperability within a single network segment. Several companies are planning rollouts of compliant chipsets in FPGAs in 2005 and ASICs the following year which will shrink the digital electronics suitable for PCMCIA type of form factors. Along with the physical shrinkage, we can reasonably expect some price shrinkage as economies of scale and amortization on non-recurrent engineering costs take place.

 

 

[[en:WiMAX]]