Satellite-HAP Network Supporting Multilayered QoS Routing in the Sky

Abstract

The main features of the future mobile communication systems are the provisioning of high-speed data transmissions (up to 1 Gb/s) and interactive multimedia services. For effective delivery of these services, the network must satisfy some strict quality-of-service (QoS) metrics, defined typically in terms of maximum delay and/or minimum throughput performances. According to this general vision, the integration of different layered networks play one of the most important roles in the telecommunication systems; for this reason, the paper explains the potential role of an integrated satellite-high-altitude platform (HAP) terrestrial system proposing a new multilayered inter-HAP-satellite routing (IHSR) algorithm integrated with an efficient admission control scheme in order to guarantee an adequate QoS to multimedia traffic connections. The performance of the overall architecture is evaluated through intensive simulations comparing the proposed algorithm with a previous classical routing scheme under several traffic load scenarios and network dimensions. The obtained results demonstrate the goodness of the proposed strategy in terms of handled active connections and inter-HAP link utilization.

Keywords:

• Connection admission control
• High-altitude platform
• Multimedia
• Routing
• Satellite
• QoS

Additional information

Notes on contributors

Pasquale Pace

Pasquale Pace received the MS degree in Computer Engineering and the PhD degree in Information Engineering from University of Calabria, Italy, in 2000 and 2005, respectively. From March to October 2005, he was the visiting researcher at the Centre for Communication Systems Research (CCSR) at the University of Surrey – UK, where he did research on multimedia satellite systems. In November 2005, he joined the DEIS Department, University of Calabria, as Research Fellow. His research interests include multimedia satellite systems, DVB-RCS-satellite architectures, IP-satellite, mobility management, traffic and resource management, call admission control and integration of satellite systems, and high-altitude platforms in heterogeneous communications networks. E-mail: [email protected]

Gianluca Aloi

Gianluca Aloi received the MS degree in Computer Engineering from University of Calabria, Italy, in 1999 and the PhD degree from University of Calabria, Italy, in 2002. Currently, he is Assistant Professor at University of Calabria where, since 1999, he is working with the telecommunications research group and is involved in several projects concerning wireless communications. His research interests include enhanced wireless and satellite systems, mobility, traffic and resource management, QoS support in heterogeneous communications networks, and inter-working of wireless and wired networks. E-mail: [email protected]