Title :
A Hierarchical and Distributed QoS Routing Protocol for Two-layered Satellite Networks
Author :
Zhou, Y.H. ; Sun, F.-C. ; Zhang, B.
Author_Institution :
Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing
Abstract :
The rapid development of onboard processing (OBP) pushes broadband satellite networks to carry on multimedia traffic. However, the function of onboard routing cannot be provided entirely in existing satellite networks with inter-satellite links (ISLs), and QoS of satellite networks cannot be reliably guaranteed because of great difficulties in processing of QoS services. In this paper, a two-layered low earth orbit (LEO) and medium earth orbit (MEO) satellite network (LMSN) is presented. Based on the idea of time-slot division, a novel dynamic hierarchical and distributed QoS routing protocol (HDRP) is investigated, and an adaptive bandwidth-constrained minimum-delay path (BMDP) algorithm is developed to calculate routing tables efficiently using the QoS metric information composed of delays and bandwidth. The performance of the LMSN and HDRP is also evaluated through simulations and theoretical analysis
Keywords :
routing protocols; satellite communication; QoS routing protocol; adaptive bandwidth; broadband satellite network; constrained minimum-delay path; intersatellite link; low earth orbit; medium earth orbit; time-slot division; Analytical models; Artificial satellites; Delay; Low earth orbit satellites; Network topology; Orbital calculations; Performance analysis; Quality of service; Routing protocols; Satellite broadcasting; Quality of Service; inter-satellite links; routing protocols; satellite networks;
Conference_Titel :
Computational Engineering in Systems Applications, IMACS Multiconference on
Conference_Location :
Beijing
Print_ISBN :
7-302-13922-9
Electronic_ISBN :
7-900718-14-1
DOI :
10.1109/CESA.2006.4281750
