Abstract
IEEE 802.11-based devices employ rate adaptation algorithms to dynamically switch data rates to accommodate the fluctuating wireless channel conditions. In this paper, we design and implement a new Background traffic aware rate adaptation algorithm (BEWARE) in Linux-based device driver. The proposed rate adaptation algorithm makes rate decisions by on-the-fly estimating the expected packet transmission time which captures both current wireless channel and background traffic conditions. Our test-bed experiment results show that BEWARE outperforms other rate adaptation algorithms by up to 150% in various indoor and outdoor scenarios.
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