WiMax Network Architecture

Fixed WiMAX can be used to provide broadband access for city cores, residential areas, small office home office (SOHO), small to medium enterprises (SMEs) and commercial / industrial / business sectors of municipalities to name a few. It can also be used to backhaul mobile WiMAX, WiFi hotspots and cellular traffic onto the core network, or as a replacement for T1 / E1 services. Links between the fixed WiMAX cells (inter-cell links) and core network links can either be wireline or point-to-point (PTP) wireless. Mobile WiMAX can be used to provide advanced mobile and portable broadband access to feature-rich, triple play devices such as smart phones, pocket PCs and personal digital assistants (PDAs).

The line-of-sight (LOS) range of fixed WiMAX systems operating in the 3.5 GHz band can be as great as 50 km, but ranges of 2-10 km are more typical in non LOS environments, depending on demographics, service availability, capacity needs and CPE location (indoor / outdoor). For mobile WiMAX systems in the 2.5 GHz band, typically 1-5 km is achievable, again depending on a number of deployment considerations. The single channel capacity of fixed and mobile WiMAX systems is as high as 40 Mbps, with multiple channels deployable on a per cell basis to increase capacity.

Canadian Activity in WiMAX
Canada, for its part, has been a pioneer of many WiMAX developments over the years and continues to play a key role. The main areas of involvement are product development, network service provision, public sector research and a leading role in national regulatory activity. Many Canadian manufacturers are involved in WiMAX product implementation for both fixed and mobile systems. Development strategies range from WiMAX chipset design, to components and modules, to full blown products. The following is a list of manufacturers with WiMAX activity based in Canada.