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PULS: Processor-Supported Ultra-Low Latency Scheduling

Ultra-low per-packet latency has become an essential system requirement as well as a critical challenge for wireless networks. While there is a rich literature on real-time wireless scheduling, it is still unclear what the minimum achievable latency is and what level of throughput can be obtained in practice. This demo presents PULS, a processor-supported software-defined wireless testbed that supports ultra-low-latency scheduling protocols. We will demonstrate that PULS provides strict per-packet latency guarantees as low as 1 millisecond with realistic throughput for wireless networks.