WiMAX Femtocell System Architecture
So what does it take to build a WiMAX Femtocell solution? WiMAX Femtocell can be visualized as a scaled down version of WiMAX macro-cell solution. In addition to the capabilities of a WiMAX macro-cell, other required features of a WiMAX Femtocell are the following: • Spectrum : WFAP operates over licensed spectrum using standard WiMAX wireless air interface and protocol. • Form factor : WFAP can be standalone (similar to WiFi access points) or integrated with DSL or cable modems. • Transport : WFAP uses transport network of subscribers’ DSL, FTTH or cable-based broadband connection. • User Capacity : Since WFAP is deployed inside a building; a WFAP needs to support at least 5-6 subscribers. • Power Output : With a range of roughly 10 meters, power output should be kept very low, no more than a 2.4 GHz WiFi product. • Deployment Support : Operating in a licensed spectrum a WFAP may face interference from neighboring base stations (femto or macro). Therefore, a WFAP should have the...
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