Analysis of deficit round robin scheduling for future aeronautical data link

Abstract

Abstract-The aviation community is currently working on the standardization of data communication systems for the future air traffic management. In this context, the International Civil Aviation Organization (ICAO) has initiated a work on standardization of an IPv6-based aeronautical telecommunications network and on future radio access technologies, respectively. In this paper, we integrate L-Band Digital Aeronautical Communications System Option 1 (L-DACS 1), which is one candidate for future radio access technologies, with realistic IPv6-based network layer functionality and analyze Deficit Round Robin (DRR) with fragmentation algorithm for the forward and return link in L-DACS 1. Our analysis mainly covers two application domains: file transfer and real-time services. We show that DRR with fragmentation scheduler provides good performance results in terms of throughput, delay, and bandwidth fairness.

Method to emulate the L-band digital aeronautical communication system for SESAR evaluation and verification

“…This is accomplished with ping6. We follow Ayaz et al [16] by implementing the resource scheduling in the ground-station with a deficit round-robin scheduler. We use the implementation provided by dummynet; the high, medium, and low classes of services are weighted 100:10:1.…”

FACTS2: A service oriented simulation framework for aeronautical communication system evaluation

“…4 These altitude levels correspond to the altitude levels assumed in [17] . 5 1 Flight Leve (FL) = 100 ft altitude.…”

“…Gomez and Ortiz [4] used ns2 to evaluate CPDLC over VDL Mode 2. The Lband Digital Aeronautical Communication System (LDACS) was evaluated by Ayaz et al [5] using OMNeT++ as described by Hoffmann et al in [6].…”

Method to emulate the L-band digital aeronautical communication system for SESAR evaluation and verification

“…Having received the resource request of all polled aircraft, the ground-station assigns resources using an appropriate scheduling algorithm. There are two published implementations of LDACS resource schedulers by Gräupl [15] and Ayaz et al [16]. Both implementations are round-robin schedulers.…”