Download or read book A Unified Framework for Performance Analysis of Contention-based Wireless MAC written by Shao-Cheng Wang and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Furthermore, in the third case study, we first use the framework to analyze the performance rate adaptation algorithms and discover that a good rate adaptation algorithm needs to dynamically adjusting the rate selection decisions with respect to different background traffic levels, in addition to the wireless channel fluctuations that was believed to be the sole key of rate adaptation. We then apply the insight observed from the proposed framework to design a rate adaptation algorithm that accommodate the mixed effects from different background traffic levels and fluctuating wireless channel conditions. While simulation results show promising improvements over the existing rate adaptation schemes, our real-world test-bed implementations also demonstrate that our framework is suitable for being practically incorporated into real hardware to provide superb performance in real-world scenarios. We expect that the proposed framework can be further generalized to evaluate the cross-layer effects such as TCP and routing in wireless mesh networks.