Google's QUIC (GQUIC) is an emerging transport protocol designed to reduce HTTP latency. Deployed across its platforms and positioned as an alternative to TCP+TLS, GQUIC is feature rich: offering reliable data transmission and secure communication. It addresses TCP+TLS's (i) Head of Line Blocking (HoLB), (ii) excessive round-trip times on connection establishment, and (iii) entrenchment. Efforts by the IETF are in progress to standardize the next generation of HTTP's (HTTP/3, or H3) delivery, with their own variant of QUIC. While performance benchmarks have been conducted between GQUIC and HTTP/2-over-TCP (H2), no such analysis to our knowledge has taken place between H2 and H3. In addition, past studies rely on Page Load Time as their main, if not only, metric. The purpose of this work is to benchmark the latest draft specification of H3 and dig further into a user's Quality of Experience (QoE) using Lighthouse: an open source (and metric diverse) auditing tool. Our findings show that, for one of H3's early implementations, H3 is consistently worse than H2 in terms of performance.
<p>Pre-Print of a paper entitled 'A Proposal and Experimental Evaluation Towards Mass Configuration of Heterogeneous IIoT Nodes' by Darius Saif and Dr. Ashraf Matrawy.</p>
In this letter, we address the issue of scalable and timely dissemination of information in resource-constrained IoT networks. The scalability is addressed by adopting a publishsubscribe architecture. To address the timely dissemination, we propose an HTTP/3 (H3) publish-subscribe solution that exploits the wide-ranging improvements offered by H3. We evaluated our solution by comparing it to a state-of-the-art work which maps MQTT to QUIC. Because QUIC and H3 have been developed in tandem, we hypothesized that H3 would take better advantage of QUIC transport than an MQTT mapping would. Performance, network overhead, and device overhead were investigated for both implementations. Our H3-based solution satisfied our timely dissemination requirement by offering a key performance savings of 1 RoundTrip Time (RTT) for publish messages to arrive at the broker. In IoT networks, with typically high RTT, this savings is significant. On the other hand, we found that MQTT-over-QUIC put marginally less strain over the network.
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