Terrestrial Wireless Networks and Satellite Systems Convergence

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

Fasson

et al. 2013

Self Cite

et al.. Handover management for hybrid satellite/terrestrial networks.Abstract. Initially envisaged to support handover between different wireless 802.x network technologies, the IEEE 802.21 standard also appears as the good candidate for handover management in future integrated satellite / terrestrial systems. This paper presents an analysis of how this standard could be implemented in the frame of a realistic scenario and taking into account the current trends in wireless network and mobility architectures. Our solution is then evaluated by means of emulation over a DVB-RCS representative testbed, and based on an experimental MIH implementation. We finally show that seamless handover can nearly be achieved with very short service outages.

Section: Inter-system Mobility Architectures and Mih Backgroundsmentioning

confidence: 99%

Handover Management for Hybrid Satellite/Terrestrial Networks

Arnal

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

Fasson

et al. 2013

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“…Open source implementations and simulation models are now available for most wireless technologies. MIH solutions have also been proposed for DVB and HSTN systems . Qureshi and Dadej , in particular, present the challenges related to the support of MIH in satellite interfaces, such as the mapping of the MIH primitives to the S‐RAN.…”

Section: Related Workmentioning

confidence: 99%

Optimized handover and resource management: an 802.21‐based scheme to optimize handover and resource management in hybrid satellite‐terrestrial networks

Ben-El-Kezadri

Fasson

et al. 2013

Satell Commun Network

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 12665 SUMMARYSatellite communications can provide fourth generation (4G) networks with large-scale coverage. However, their integration to 4G is challenging because satellite networks have not been designed with handover in mind. The setup of satellite links takes time, and so, handovers must be anticipated long before. This paper proposes a generic scheme based on the Institute of Electrical and Electronics Engineers 802.21 standard to optimize handover and resource management in hybrid satellite-terrestrial networks. Our solution, namely optimized handover and resource management (OHRM), uses the terrestrial interface to prepare handover, which greatly speeds up the establishment of the satellite link. We propose two mechanisms to minimize the waste of bandwidth due to wrong handover predictions. First, we leverage the support of 802.21 in the terrestrial access network to shorten the path of the signaling messages towards the satellite resource manager. Second, we cancel the restoration of the satellite resources when the terrestrial link rolls back. We use OHRM to interconnect a digital video broadcasting and a wireless 4G terrestrial network. However for the simulation tool, we use a WiMAX as the terrestrial technology to illustrate the schemes. The simulation results show that OHRM minimizes the handover delay and the signaling overhead in the terrestrial and satellite networks.

“…In [1], authors proposed an architecture for the integration between WiMAX and satellite networks (WiMAX/DVB-RCS). The defined architecture takes into account the MIH (Media Independent Handover) reference model proposed by IEEE 802.21 as integration between a satellite system and terrestrial networks.…”

Section: Introductionmentioning

confidence: 99%

Performance of WiMAX Networks Integrated in a Segment of Satellite using Channel Reservation Mechanism

Salhani

VTC Spring 2008 - IEEE Vehicular Technology Conference

Beylot

2008

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Mobility issue and service continuity represent important challenges for next generation networks. The integration of a satellite segment within a terrestrial network (especially WiMAX) has several advantages in a 4G context. In this paper, we focus on channel reservation mechanisms to ensure quality of service. Primary results show, by means of simulation, the gains and limitations of each mechanism. It is shown that the best results are obtained when the mechanisms are performed by the base stations when the density of users is low. Otherwise, cooperative solutions for which reservations are done by neighboring nodes may improve the performance of the system.