Experimental Evaluation of Application Performance With 802.11 PHY Rate Adaptation Mechanisms in Diverse Environments


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Date: January 2008
Type: White Paper
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Overview: Wireless LAN (WLAN) technology based on IEEE 802.11 standard is being commonly used in offices and hotspots for indoor wireless Internet access. The success of 802.11 technology has led to newer usage scenarios, including community mesh networks and multimedia distribution/data networking in the home. The application performance with different rate adaptation mechanisms is dependent on the specific tradeoffs these mechanisms make at the link layer in an application-oblivious manner between improving throughput and limiting frame loss. This research paper focuses on PHYsical layer (PHY) data rate adaptation mechanisms that are usually implemented in the MAC layer.

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