Inter-System Handover Analysis in Integrated Terrestrial and GEO Satellite Communication Networks for Seamless Mobility

Hong, Tae Chul; Kang, Kun Seok; Ahn, Do-Seob; Lee, Ho-Jin

doi:10.1109/icact.2007.358454

Cited by 4 publications

(5 citation statements)

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“…In satellite-terrestrial networks, two types of handover schemes should be taken into consideration [29]: horizontal handover and vertical handover. Horizontal handover means the handover scheme happens between satellites beams and vertical handover take action when terrestrial networks need to mitigate the task to satellite or vice versa [158], [168], [169]. What's more, it should also be considered that the service time in space is discontinuous, according to [30], although constellations are designed to maximize the coverage area, it is a complicated task to deploy appropriate populated satellite that can guarantee one hundred percent coverage rate, as the settlement of total satellite number is a multi-objective problem.…”

Section: ) Seamless Service Coveragementioning

confidence: 99%

“…Compared with terrestrial networks, satellite-terrestrial networks need to deal with connectivity block brought by high mobility of users or satellites [168], [177]. The intermittent connection is rather harmful to some delay-sensitive services.…”

Section: B Sdn Based Satellite-terrestrial Architecturementioning

confidence: 99%

“…This undoubtedly adds workload for serving network to determine and select an appropriate cell. Some handover decisions take the characteristics of the signal from satellite as a criterion, authors in [168] make approach from the characteristic of the signal as the trigger for handover scheme, three signal strengths are proposed for the network to judge whether the handover scheme should be initiated. However, only the GEO satellite is analyzed.…”

Section: ) Mobility Managementmentioning

confidence: 99%

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Convergence of Satellite and Terrestrial Networks: A Comprehensive Survey

et al. 2020

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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.

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Section: ) Seamless Service Coveragementioning

confidence: 99%

Section: B Sdn Based Satellite-terrestrial Architecturementioning

confidence: 99%

Section: ) Mobility Managementmentioning

confidence: 99%

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Convergence of Satellite and Terrestrial Networks: A Comprehensive Survey

et al. 2020

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“…Figure 8 shows the handover procedure for a satellite UE from the satellite network to the terrestrial small cell network and the interaction among network components while carrying out the procedure. Following Media Independent Handover function of IEEE 802.21 [14], which is applicable for inter-working of communication systems [15], the handover procedure of a satellite UE from a satellite network to a small cell network and vice versa can be explained. We present in the following a generic handover procedure for a satellite UE between the satellite station and the in-building small cell base station irrespective of the type of satellite stations.…”

Section: B Satellite Ue Handover Proceduresmentioning

confidence: 99%

“…where σ TMS , σ cl,sc and σ cl,su are given by ( 11), (15), and (16). When L is large enough such that L × σ cl,sc + σ cl,su σ TMS , ( 24) can be approximated as follows.…”

Section: Performance Metrics Estimation For Dense Small Cell Deployment a Capacity Spectral Efficiency And Energy Efficiency For Multiplementioning

confidence: 99%

Spectrum Sharing in Satellite-Mobile Multisystem Using 3D In-Building Small Cells for High Spectral and Energy Efficiencies in 5G and Beyond Era

Saha

2019

IEEE Access

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In this paper, we present a novel technique for sharing satellite spectrum with terrestrial-mobile 3-dimensional (3D) in-building small cells, namely femtocells. Both the space-satellite and the terrestrial-mobile systems (TMSs) operate at their respective licensed spectrums. However, due to the scarcity of the available spectrum, a huge amount of data generated indoors, and a high external wall penetration loss of a 3D building, we propose to reuse the satellite spectrum to small cells deployed only in 3D buildings of the TMS. The proposed spectrum sharing technique is detailed by identifying and addressing the major related issues. The co-channel interference generated because of the co-existence of the satellite user equipments (UEs) in the small-cell coverage is analyzed, and the handover procedures for a satellite UE toward and away from any small cell are discussed. The almost blank subframe (ABS)-based enhanced intercell interference coordination (eICIC) technique is employed to small cells in order to assure the qualityof-service (QoS) between small-cell UEs and satellite UEs. We derive the system-level capacity, spectral efficiency, and energy efficiency performance metrics for the proposed technique by varying the number of buildings over the coverage of a macrocell and deduce the condition for optimality for both the energy efficiency and the spectral efficiency. With an extensive system-level simulation and numerical analysis, we justify the impact of using the ABS-based eICIC technique toward provisioning QoS in terms of radio resource allocation. Furthermore, we show the outperformance of the proposed technique in terms of spectral efficiency and energy efficiency over the ones expected for the fifth generation (5G) network requirements as well as achieved by numerous existing techniques. Finally, we discuss the radio resource scheduler implementation as well as the significance, challenge, and future research perspective of the proposed spectrum sharing technique.

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