Wireless memory: Eliminating communication redundancy in Wi-Fi networks

Studies have shown the presence of considerable amounts of redundancy in Internet traffic content. Recent works are exploring possibilities for exploiting network traffic redundancy, but these works invariably focus on fixed wireline networks. Unlike wireline networks, wireless and mobile environments exhibit unique challenges and opportunities in the context of redundancy elimination. In this work, we explore leveraging network traffic redundancy, but exclusively focus on wireless and mobile environments. We first analyze real Wi-Fi traces, and based on insights obtained from the analysis, we propose Wireless Memory (WM), a two-ended AP-client solution to effectively exploit traffic redundancy for such environments. Trace-driven evaluation results show that WM can help deliver significant throughput improvement.