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Real-Time Centralized Spectrum Monitoring: Feasibility, Architecture, and Latency

Published

Author(s)

Michael R. Souryal, Mudumbai Ranganathan, John Mink, Naceur A. El Ouni

Abstract

This paper describes the implementation and evaluation of a real-time, centralized spectrum monitoring and alert system. Such a system can be used to support emerging spectrum sharing solutions that use a centralized controller to mediate tiered access to spectrum. Such controllers rely on real-time awareness of spectrum activity. In addition to describing the architecture and prototype implementation of this real-time monitoring system, we propose a test method to measure the latency of detecting a spectrum occupancy event. This latency is measured as the time from when the event (e.g., a signal transmission) begins to when an alert of that event is delivered to a subscribed client. We used this test method to measure the latency of two different sensor implementations in conjunction with our spectrum occupancy server and found the 95th percentile latency to be under 80 ms in both cases, plus the network transmission delays of any wide area network involved.
Proceedings Title
IEEE Dynamic Spectrum Access Networks (DySPAN) Conference
Conference Dates
September 29-October 2, 2015
Conference Location
Stockholm, -1

Keywords

spectrum monitoring, spectrum sharing, spectrum occupancy, spectrum sensing
Created September 29, 2015, Updated February 19, 2017