Description: WiMAX and WiFi have emerged as promising
broadband access solutions for the latest generation of wireless
MANs and LANs, respectively. Their complementary features
enable the use of WiMAX as a backhaul service to connect
multiple dispersed WiFi hotspots to the Internet. This study
proposes an integrated architecture utilizing a novel
WiMAX/WiFi Access Point (W2-AP) device to effectively combine
the WiMAX and WiFi technologies. In the proposed architecture,
the protocol operation of the WiFi hotspots is the same as that of
the WiMAX system. As a result, the WiFi network can support
connection-oriented transmissions and QoS in a similar fashion to
the WiMAX system, and thus a considerable improvement in the
delay performance is obtained. The numerical results obtained
using a Qualnet simulator confirm both the effectiveness and the
efficiency of the proposed architecture.
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