![\"Viodi](\"http:\/\/www.viodi.com\/images\/logo-145px.gif\"){kind=logo}
<\/p>\n\u00a0<\/p>\n
<\/p>\n
Viodi View Menu<\/strong><\/p>\n Current Issue<\/a> 802.22 WRAN WG Update<\/a> Tidbits from Minnesota<\/a> Give Me a Hand<\/a> <\/p>\n Previous Issue<\/a> <\/p>\n Viodi View Subscribe<\/a> <\/p>\n Viodi Forums<\/strong> Club Viodi<\/a> Local Content<\/a> <\/p>\n Multimedia Search <\/a> <\/p>\n Viodi Workshops<\/strong> Local Content<\/a> Telco Video 101<\/a> Incremona Training<\/a> <\/p>\n Industry<\/strong> Industry Calendar<\/a> Favorite Links<\/a><\/p>\n About Viodi<\/a> Contact<\/a> Biographies<\/a> <\/p>\n Interested in Sponsoring the Viodi View? Send an email to: sponsor@viodi.com<\/strong><\/p>\n Please forward<\/strong> this free publication to anyone you know who is involved in some way with independent telephone companies. <\/p>\n Mission of the Viodi View:<\/strong><\/p>\n In this on-line publication, we share our analysis, opinions and direction on the interactive television news and views that we believe will be of interest and use to our friends associated directly or indirectly with independent telephone companies. For more information as to the various ways Viodi works with independent telephone companies, please go to http:\/\/www.viodi.com\/alliance\/<\/a><\/p>\n Disclaimer:<\/strong><\/p>\n The Viodi View [Viodi, LLC] and its associates used their best efforts in collecting and preparing the information published herein. However, the Viodi View [Viodi, LLC] does not assume, and hereby disclaims, any and all liability for any loss or damage caused by errors or omissions, whether such errors or omissions resulted from negligence, accident, or other causes.<\/p>\n All displayed trademarks, logos and service marks are the property of their respective owners. \u00a9 2005Viodi, LLC<\/a>. All Rights Reserved. Viodi View Newsletter – March 30th, 2005 <\/strong> <\/p>\n IEEE 802.22 Wireless Regional Area Network (WRAN) By Alan J Weissberger [Editor’s Note:<\/strong> To read the full text of this report, which is highly recommended, please email the author directly at aweissberger@sbcglobal.net<\/strong>]<\/p>\n Executive Summary<\/strong><\/p>\n IEEE 802.22 is a new IEEE 802 Working Group (WG) formed in 2004. The WG is chartered to develop an interoperable air interface<\/strong> for use in spectrum allocated to TV Broadcast Service<\/strong>, thus enabling a Point to Multipoint (P-MP) Wireless Regional Area Network (WRAN). The WRAN system will provide packet-based transport capabilities that can support a wide range of services (e.g. internet access, data transport, voice and streaming video) to residential, Small and Medium Enterprises (SME) and Small Office\/Home Office (SOHO) locations. <\/p>\n The 802.22 committee desired to reach an understanding and consensus for functional requirements before proceeding with developing standards for 802.22 MAC and PHY protocols and thus spent this entire meeting working on a Functional Requirements <\/strong>document.<\/p>\n WRAN technology is initially targeted at wireless broadband (remote) access for geographically dispersed, sparsely populated <\/strong>areas. The transmission range can be up to 100Km, Non Line of Sight (NLOS) due to use of TV broadcast bands as License Exempt (LE) spectrum. Hence, this new network technology should be of interest for remote access to grid computer sites and to independent telcos operating in developing countries, rural or non- metropolitan areas.<\/p>\n The target markets for 802.22 WRANs are not an exhaustive set, but serve as guidelines and examples that suffice for meeting the broad applicability goals set forth by the air interface \u201cFive Criteria\u201d as described in the IEEE 802.22 Project Authorization Request (PAR) and \u201cFive Criteria.\u201d The PAR can be downloaded (free) from:<\/p>\n http:\/\/www.ieee802.org\/22\/802-22_PAR.pdf<\/a><\/p>\n The target market<\/strong>s to be addressed by the 802.22 protocols in WRAN networks are single family residential, multi-dwelling units, SOHO, small businesses, multi-tenant buildings and public and private campuses. In accordance with ITU-R definitions, Fixed Wireless Access (FWA) (and hence WRAN) provides access to one or more (public and private) core networks, rather than forming an end-to-end communication system. 802.22 systems serve fixed location customers, but who might be geographically fixed, re-locatable or nomadic.<\/p>\n A Wireless Regional Area Network (WRAN) system based on 802.22 protocols is intended to make use, on a non-interfering basis, of unused TV broadcast channels<\/strong> (6MHz, 7MHz, or 8MHz) to address, as a primary objective, rural and remote areas and low population density underserved markets with performance levels similar to those of broadband access technologies such as digital subscriber line (xDSL) technologies and Digital Cable modem service. A secondary objective is to have this system scale to serve denser population areas where spectrum is available.<\/p>\n The WRAN system must be capable of supporting a mix of data, voice and audio\/video applications. These include Internet access, VoIP, and streaming video.<\/p>\n The critical<\/strong> parameters for serving these markets using wireless access technology<\/strong> is the combination of coverage \/ capacity factors that affects access cost per user, the deployability, maintainability and product costs associated with the customer premise installation, and the spectrum efficiency \/ reuse for economically serving the required number of customer locations with a minimum number of base station locations and backhaul routes.<\/p>\n The 802.22 wireless regional area network system is aimed at providing broadband access with capabilities similar to the ADSL and cable modem technologies over less populated rural areas. The typical range<\/strong> of the system is 33 km<\/strong> (based on F(90, 99.9)) for a coverage of population density of 1.25 person\/km2 and above, maximum is 100km. The system will need to operate over a set of typical channels models. Provisioning (as usual) was not discussed at this meeting. It will likely be a proprietary feature for the network operators.<\/p>\n [To read the full text of this report, which is highly recommended, please email the author directly at aweissberger@sbcglobal.net<\/strong>] <\/p>\n Next Article<\/a><\/p>\n Back to Top<\/a><\/p>\n Previous Issue<\/a><\/p>\n Viodi View Subscribe<\/strong><\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n \u00a0<\/p>\n
5255 Stevens Creek, #127 Santa Clara, CA 95051<\/p>\n![\"Click](\"http:\/\/www.viodi.com\/images\/conferencelogo.gif\")
<\/a>
Local Content Workshop<\/a> <\/p>\n
March 15-17, 2005 Meeting, Atlanta, GA<\/strong><\/p>\n
aweissberger@sbcglobal.net<\/strong> <\/p>\n![](\"https:\/\/viodi.com\/classic\/wp-content\/uploads\/2005\/03\/wan.jpg\")
Positioning of WRAN amongst IEEE 802 wireless networks
Note that 802.22 WRAN offers the greatest coverage due to use of VHF\/UHF bands Illustration courtesy of the IEEE 802.22 Working group <\/p>\n![](\"http:\/\/postsnet.com\/campaigner_images\/Images\/optinlistbuilder\/FM-1.gif\")
<\/a>
Privacy Policy<\/a> <\/p>\n![](\"http:\/\/www.viodi.com\/newsletter\/050200\/IOC.jpg\")
<\/a><\/p>\n![\"Click](\"http:\/\/www.viodi.com\/ipvideo05\/ipvideologo.jpg\")
<\/a>
Click Here to Register<\/a> <\/p>\n