A Just-in-Time Networking Framework for Minimizing Request-Response Latency of Wireless Time-Sensitive Applications

This article puts forth a networking paradigm, referred to as just-in-time (JIT) communication, support client-server applications with stringent request-response latency requirement. Of interest is not just the round-trip delay of network, but actual experienced by application. The JIT framework contains two salient features. At client side, communication layer will “pull” request from when there an upcoming transmission opportunity network. ensures that information fresh possible (e.g., sensor reading obtained before opportunity). server network ascertains server, after receiving and processing generate response control command be sent client), have at this time. We realize system, including protocol stack, over time-division-multiple-access (TDMA) implemented on System-on-Chip (SoC) platform. prove TDMA power-of-2 time slots per superframe optimal for realizing server-side function. Our experimental results validate networks can yield significantly lower than without can.