Wimax

Intends to open 10 branches - haven’t decided on the exact location
Approximately 20 km apart from each other and away from the HQ
Using for voice and data
ECONOMICAL TECHNICAL OPERATIONAL

What is WIMAX?
http://www.tech-ware-tips-startup-internet-business.com/wimax-network.html

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
[pic] http://wifinotes.com/wimax/wimax-architecture.html

    ● IP Core Router
    ● IP Aggregate Router
    ● ASN Gateway
    ● HA – Home Agent
    ● Firewall
    ● DHCP Server
    ● AAA Server
    ● Billing Server
    ● NMS/EMS Server
    ● VOIP Servers


Minimum Specifications


Base Station

    ● Distance: More than 20 kilometres
    ● Supports MIMO
    ● Backhaul connectivity (for future expansions)

Types of BS: Macro Micro




WiMAX Antennas



[pic]
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
[pic]
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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