Hybrid channel adaptive handover scheme for non-GEO satellite diversity based systems

Gkizeli, M.; Tafazolli, Rahim; Evans, B.G.

doi:10.1109/4234.935743

Cited by 33 publications

(24 citation statements)

References 3 publications

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“…Based on the two threshold hard handover scheme, Gkizeli et al [34] [36] proposed a Hybrid CASD handover scheme which uses dual satellite diversity (two contagious satellites sharing common coverage areas on earth surface) only under critical channel conditions (when the fading level of the signals in the channel is high). Thus, this scheme uses the two threshold concept (Sec.…”

Section: B Hybrid Casd Based Handover Schemementioning

confidence: 99%

“…Gkizeli et al [34] [35] [36] proposed two handover schemes for systems with satellite diversity: (a) hard handover scheme, and (b) hybrid Channel Adaptive Selective (CASD) scheme. Hard handover scheme uses two thresholds during handover while hybrid CASD scheme uses dual satellite diversity coupled with two thresholds under critical channel conditions [36].…”

Section: Satellite Handovermentioning

confidence: 99%

See 1 more Smart Citation

Handover schemes in satellite networks: state-of-the-art and future research directions

Chowdhury¹,

Atiquzzaman²,

Ivancic³

2006

IEEE Commun. Surv. Tutorials

132

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Abstract-Low Earth Orbit (LEO) satellites will work as an important component in future data communication networks. LEO satellites provide low end-to-end delays and efficient frequency spectrum utilization, making it suitable for personal communication. However, due to high satellite speed, the ongoing communication using LEO constellations experiences frequent handover. In this paper, we provide an up-to-date comprehensive literature survey on proposed handover schemes for LEO satellite systems. We also present a detailed classification of handover schemes based on a common framework. We first classify the schemes into link layer and network layer handover schemes. Link layer handover schemes are further classified into three categories: (a) spotbeam handover schemes, (b) satellite handover schemes, and (c) ISL handover schemes. Spotbeam handover schemes are categorized based on channel capacity, handover guarantee, and handover prioritization techniques. Network layer handover schemes are also classified depending on connection transfer strategies. Finally, we compare the handover schemes using different Quality of Service.

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Section: B Hybrid Casd Based Handover Schemementioning

confidence: 99%

Section: Satellite Handovermentioning

confidence: 99%

Handover schemes in satellite networks: state-of-the-art and future research directions

Chowdhury¹,

Atiquzzaman²,

Ivancic³

2006

IEEE Commun. Surv. Tutorials

132

View full text Add to dashboard Cite

show abstract

“…In [7], two handover algorithms are proposed for systems with satellite diversity; (i) a hard handover scheme with different power thresholds for adding/dropping the satellites involved in the handover process and (ii) a hybrid channel adaptive selective scheme (CASD) -which uses the two -threshold concept of the hard operation and at the same time is generic as it can operate in hard or soft handover. However, in this study only the case in which a call is dropped due to power limitations is considered.…”

Section: Introductionmentioning

confidence: 99%

Satellite handover techniques for LEO networks

Papapetrou

Karapantazis

Dimitriadis

et al. 2004

Satell Commun Network

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Low earth orbit (LEO) satellite constellations could play an important role in future mobile communication networks due to their characteristics, such as global coverage and low propagation delays. However, because of the non-stationarity of the satellites, a call may be subjected to handovers, which can be cell or satellite handovers. Quite many techniques have been proposed in the literature dealing with the cell handover issue. In this paper, a satellite handover procedure is proposed, that investigates and exploits the partial satellite diversity (namely, the existing common coverage area between contiguous satellites) in order to provide an efficient handover strategy, based always on a tradeoff of the blocking and forced termination probabilities for a fair treatment of new and handover calls. Three different criteria were examined for the selection of a satellite. Each one of them could be applied either to new or handover calls, therefore we investigated nine different service schemes. A simulation tool was implemented in order to compare the different service schemes and simulation results are presented at the end of the paper.

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“…There have also been lots of academic research efforts studying resource management and handover schemes in satellite networks [4]- [6]. It has been shown that the centralized algorithm [4] and hybrid handover schemes [5] can improve the overall quality of service (QoS) during handover. Various handover mechanisms, including spotbeam handover, satellite handover and inter-satellite links handover are surveyed in [6].…”

mentioning

confidence: 99%

“…We then present a seamless handover protocol that is tailored to and takes advantage of the SDSN, with a meaningful level of detail for implementation. Performance of the proposed SDSN handover protocol (in terms of handover latency, throughput, and user quality of experience (QoE)) is tested on a physical layer simulator and compared with those of existing hard [6] and hybrid [5] handover schemes for satellite networks. We also analyze the relationship between the height of satellites, the location of users and the communication quality for the considered satellite handover mechanisms, and reveal the relationship between communication metrics and the QoE of users.…”

mentioning

confidence: 99%

Seamless Handover in Software-Defined Satellite Networking

et al. 2016

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Abstract-Satellites have largely been designed as applicationspecific and isolated for the past decades. Though with certain benefits, it might lead to resource under utilization and limited satellite applications. As an emerging networking technology, software-defined networking (SDN) has recently been introduced into satellite networks. In this letter, we propose a softwaredefined satellite networking (SDSN) architecture, which simplifies networking among versatile satellites and enables new protocols to be easily tested and deployed. Particularly, we propose a seamless handover mechanism based on SDSN, and conduct physical layer simulation, which shows significant improvement over the existing hard handover and hybrid handover mechanisms in terms of handover latency, throughput and quality of experience of users.

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Hybrid channel adaptive handover scheme for non-GEO satellite diversity based systems

Cited by 33 publications

References 3 publications

Handover schemes in satellite networks: state-of-the-art and future research directions

Handover schemes in satellite networks: state-of-the-art and future research directions

Satellite handover techniques for LEO networks

Seamless Handover in Software-Defined Satellite Networking

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