mca 14(5): e2

Research Article

Generalized Encoding CRDSA: Maximizing Throughput in Enhanced Random Access Schemes for Satellite

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  • @ARTICLE{10.4108/mca.2.5.e2,
        author={Manlio Bacco and Pietro Cassar\^{a} and Alberto Gotta},
        title={Generalized Encoding CRDSA: Maximizing Throughput in Enhanced Random Access Schemes for Satellite},
        journal={EAI Endorsed Transactions on Mobile Communications and Applications},
        volume={2},
        number={5},
        publisher={ICST},
        journal_a={MCA},
        year={2014},
        month={12},
        keywords={Satellite, Interference Cancellation, DVB-RCS2, CRDSA, Slotted Aloha, Random Access},
        doi={10.4108/mca.2.5.e2}
    }
    
  • Manlio Bacco
    Pietro Cassará
    Alberto Gotta
    Year: 2014
    Generalized Encoding CRDSA: Maximizing Throughput in Enhanced Random Access Schemes for Satellite
    MCA
    ICST
    DOI: 10.4108/mca.2.5.e2
Manlio Bacco1,2,*, Pietro Cassará1, Alberto Gotta1
  • 1: National Research Council of Italy (CNR), Institute of Information Science and Technologies (ISTI)
  • 2: University of Siena, Information Engineering and Mathematic Science Department
*Contact email: manlio.bacco@isti.cnr.it

Abstract

This work starts from the analysis of the literature about the Random Access protocols with contention resolution, such as Contention Resolution Diversity Slotted Aloha (CRDSA), and introduces a possible enhancement, named Generalized Encoding Contention Resolution Diversity Slotted Aloha (GE-CRDSA). The GE-CRDSA aims at improving the aggregated throughput when the system load is less than 50%, playing on the opportunity of transmitting an optimal combination of information and parity packets frame by frame. This paper shows the improvement in terms of throughput, by performing traffic estimation and adaptive choice of information and parity rates, when a satellite network undergoes a variable traffic load profile.