Research Article
A Cross-Layer Approach to Dynamic Bandwidth Allocation in Satellite Networks
@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
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.
