Performance Analysis of Correlated Handover Service in LEO Mobile Satellite Systems

Musumpuka, Remmy; Walingo, Tom; Smith, J. MacGregor

doi:10.1109/lcomm.2016.2604311

Cited by 22 publications

(7 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It shows that the method improves the blocking probability and dropping ability. Compared with [177], authors in [178] proposed an analytical model with regard to service time correlation in spotbeams. They argue that temporally correlated channel has effect on transmissions and they derive a closed form method for correlated queue service.…”

Section: ) Mobility Managementmentioning

confidence: 99%

Convergence of Satellite and Terrestrial Networks: A Comprehensive Survey

et al. 2020

View full text Add to dashboard Cite

The explosive growth of various services boosts the innovation and development in terrestrial communication systems for the implementation of the next generation mobile communication networks. However, simply utilizing limited resources in terrestrial communication networks is difficult to support the massive quality of service (QoS) aware requirements and it is hard to guarantee seamless coverage in far remote regions. Leveraging the intrinsic merits of high altitude and the ability of multicasting or broadcasting, satellite communication systems provide an opportunity for novel mobile communication networks with its tight interaction and complementary characteristics to traditional terrestrial networks. It is believed that the convergence of satellite and terrestrial networks can solve the problems existing in current mobile communication systems and make a profound effect on global information dissemination. In this paper, we make a comprehensive survey on the convergence of satellite and terrestrial networks. First, motivations and requirements of satellite-terrestrial network convergence are identified. Then, we summarize related architectures of existing literature, classify the taxonomy of researches on satellite-terrestrial networks, and present the performance evaluation works in different satellite-terrestrial networks. After that, the state-ofthe-art of standardization, projects and the key application areas of satellite-terrestrial networks are also reviewed. Finally, we conclude the survey by highlighting the open issues and future directions.

show abstract

Section: ) Mobility Managementmentioning

confidence: 99%

Convergence of Satellite and Terrestrial Networks: A Comprehensive Survey

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Most existing works focusing on the handover problems in satellite systems devoted themselves to analyze handover models and propose handover strategies [4]- [6]. The work in [4] analyzed the blocking probability using a Markov model and a service time distribution model. However, they did not analyze the throughput and dropping probability or propose efficient handover optimization to improve the performance.…”

Section: B Related Workmentioning

confidence: 99%

Forecast Based Handover in an Extensible Multi-Layer LEO Mobile Satellite System

Zhou

2020

IEEE Access

View full text Add to dashboard Cite

Low earth orbit mobile satellite system (LEO-MSS) is the major system to provide communication support for the regions beyond the coverage of terrestrial network systems. However, passive handover happens frequently caused by the quick movement of LEO satellites in LEO-MSS. It not only causes the waste of radio resource, but also makes it hard to guarantee the quality of service (QoS), especially for user groups in hot-spot regions. To tackle this problem, we propose an extensible multi-layer network architecture to reduce the handover rate, especially group handover rate by introducing high-altitude platforms (HAPs) and terrestrial relays (TRs) to this system. We then propose a multi-layer handover management framework and also design different handover procedures based on handover forecast for different kinds of handovers according to the proposed architecture and framework to reduce handover delay and signalling cost. Furthermore, we propose a dynamic handover optimization to reduce the dropping probability and guarantee the QoS of mobile terminals. Numerical results show that the proposed architecture reduces group handovers significantly. The proposed handover procedures also provide better performance on delay and signalling cost compared with traditional handover protocols. With the proposed dynamic handover optimization, the proposed handover procedures provide better performance on dropping probability and throughput. The proposed dynamic handover optimization has an excellent performance on dropping probability while guaranteeing the QoS of mobile terminals.

show abstract

“…In this regard, it is the general trend of research on ISL handover. A hard handover scheme and a hybrid channel adaptive handover scheme were proposed by Gkizeli et al Seyedi et al analyzed the coverage time for the users in LEO satellite networks and initially derived a lower bound for the expected quantity of ISL handover . The foregoing ISL handover criterions were concluded, and a graph‐based ISL handover prediction framework was proposed by Zhaofeng Wu et al to incorporate all the existing satellite handover criterions flexibly.…”

Section: Introductionmentioning

confidence: 99%

Velocity‐aware handover prediction in LEO satellite communication networks

Song

Liu

et al. 2018

Satell Commun Network

View full text Add to dashboard Cite

The previous satellite handover prediction and ground cellular network were mainly studied in the static steady satellite links. Rare work has been conducted to resolve the dynamic satellite handover prediction. The complexity of this problem comes from that the multiple link states of the satellite change with the users' movements. To reckon with these challenges, the time-expanded graph, in which the covering satellite and the handover strategy are treated as its node and arc weight respectively, is constructed in this paper. And the handover prediction is viewed as finding the shortest path of the time-expanded graph dynamically based on the previous state with the perception of velocity. Compared with the previous approaches in the satellite handover prediction, the proposed method can effectively avoid the handover prediction failure and reduce the redundant computation triggered by static update algorithms. Simulation results are presented to show the improvements. KEYWORDS dynamic update, intersatellite link (ISL) handover, LEO satellite network, satellite handover 1 | INTRODUCTIONIn contrast with geostationary and medium earth orbit, low Earth orbit (LEO) satellite communication networks take on a shorter propagation delay. The demand for a seamless real-time voice and data coverage can be met as the LEO systems are integrated with terrestrial links. Because the position of base station in the ground cellular network is fixed, the user generally performs handover through the real-time signal-to-interference-plus-noise ratio measurement. However, arising from the low altitudes and high speeds of LEO satellite communication networks, their footprints on the earth's surface shall be changed rapidly so that the real-time signal-to-interference-plus-noise ratio measurement is not fully applicable to the LEO satellite communication. Consequently, the prediction of the handover needs to be performed so as to elevate the frequency of satellite handover to sustain a real-time service connection.In contrast with the spot-beam handover and ground cellular network handover, the intersatellite link (ISL) handover has aroused less concern.With the increase in the number of LEO satellites, more satellites at any time can be approved by the user. In this regard, it is the general trend of research on ISL handover. A hard handover scheme 1 and a hybrid channel adaptive handover scheme 2,3 were proposed by Gkizeli et al. Seyedi et al analyzed the coverage time for the users in LEO satellite networks and initially derived a lower bound for the expected quantity of ISL handover. 4,5 The foregoing ISL handover criterions were concluded, and a graph-based ISL handover prediction framework 6 was proposed by Zhaofeng Wu et al to incorporate all the existing satellite handover criterions flexibly. Unfortunately, most of the works can be merely geared into the scenario where the satellite link states are stable. They hypothesize if the velocity of the user is negligible. Yet practically, the velocity of the user is not negligible ...

show abstract

Performance Analysis of Correlated Handover Service in LEO Mobile Satellite Systems

Cited by 22 publications

References 10 publications

Convergence of Satellite and Terrestrial Networks: A Comprehensive Survey

Convergence of Satellite and Terrestrial Networks: A Comprehensive Survey

Forecast Based Handover in an Extensible Multi-Layer LEO Mobile Satellite System

Velocity‐aware handover prediction in LEO satellite communication networks

Contact Info

Product

Resources

About