Approximately 20 km apart from each other and away from the HQ
Using for voice and data
ECONOMICAL TECHNICAL OPERATIONAL
What is WIMAX?
Hardware (Wan’s Part)
Three components of WiMax Network Architecture
● Mobile stations - Used as a source of network connection for end users.
● Access Service Network - Formed of more than two or three base stations. It also contains ASN gateways which build the radio access at the end.
● Connectivity Service Network - Responsible for providing IP functions
● IP Core Router
● IP Aggregate Router
● ASN Gateway
● HA – Home Agent
● DHCP Server
● AAA Server
● Billing Server
● NMS/EMS Server
● VOIP Servers
● Distance: More than 20 kilometres
● Supports MIMO
● Backhaul connectivity (for future expansions)
Types of BS: Macro Micro
Figure 11: Different antenna types are designed for different applications
WiMAX antennas, just like the antennas for car radio, cell phone, FM radio, or TV, are designed to optimize performance for a given application. The figure above illustrates the three main types of antennas used in WiMAX deployments. From top to bottom are an omni directional, sector and panel antenna each has a specific function.
Omni directional antenna
Figure 12: An omni-directional antenna broadcasts 360 degrees from the base station
Omni directional antennas are used for point-to-multipoint configurations. The main drawback to an omni directional antenna is that its energy is greatly diffused in broad-casting 360 degrees. This limits its range and ultimately signal strength. Omni directional antennas are good for... [continues]
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