Personal Satellite Services. Second International ICST Confernce, PSATS 2010, Rome, Italy, February 2010 Revised Selected Papers

Research Article

A Cross-Layer Approach to Dynamic Bandwidth Allocation in Satellite Networks

Download
444 downloads
  • @INPROCEEDINGS{10.1007/978-3-642-13618-4_9,
        author={Andrea Fiaschetti and Antonio Pietrabissa and Laura Pimpinella},
        title={A Cross-Layer Approach to Dynamic Bandwidth Allocation in Satellite Networks},
        proceedings={Personal Satellite Services. Second International ICST Confernce, PSATS 2010, Rome, Italy, February 2010 Revised Selected Papers},
        proceedings_a={PSATS},
        year={2012},
        month={5},
        keywords={Cross-layer Bandwidth on demand DVB-RCS Satellite Network},
        doi={10.1007/978-3-642-13618-4_9}
    }
    
  • Andrea Fiaschetti
    Antonio Pietrabissa
    Laura Pimpinella
    Year: 2012
    A Cross-Layer Approach to Dynamic Bandwidth Allocation in Satellite Networks
    PSATS
    Springer
    DOI: 10.1007/978-3-642-13618-4_9
Andrea Fiaschetti1,*, Antonio Pietrabissa1,*, Laura Pimpinella1,*
  • 1: University of Rome “La Sapienza”
*Contact email: fiaschetti@dis.uniroma1.it, pietrabissa@dis.uniroma1.it, pimpinella@dis.uniroma1.it

Abstract

This work presents an innovative cross-layer approach to dynamic bandwidth allocation (BoD) in Satellite DVB-RCS networks. The algorithm is based on the assumption that, by managing the traffic at IP level through interaction with MAC level, a meaningful reduction in packet loss can be achieved, thus resulting in better resource exploitation. The proposed mechanism has been embedded in a consolidated control scheme for dynamic bandwidth allocation ([23], [1]). The interaction consists in the computation of the exact amount of MAC cells to send to the air interface during the next frame; based on this computation, the proper number of IP packets are segmented, transmitted to the MAC layer and queued in the MAC buffers. In this way, a twofold result is obtained: 1) no duplication of the scheduling function, scheduling can be performed at IP layer only, and 2) avoidance of overflows of MAC buffers. Simulations results, obtained by Opnet®, confirm the effectiveness of the proposed approach.