A Soft-Handover Scheme for LEO Satellite Networks

Paulo Miguel de Araújo Borges Montezuma de Carvalho; Paulo da Costa Luís da Fonseca Pinto; Rui Miguel Henriques Dias Morgado Dinis; Rodolfo Alexandre Duarte Oliveira; Luís Filipe Lourenço Bernardo; DEE Group Author

doi:10.1109/VTCFall.2013.6692061

A Soft-Handover Scheme for LEO Satellite Networks

Paulo Miguel de Araújo Borges Montezuma de Carvalho, Paulo da Costa Luís da Fonseca Pinto, Rui Miguel Henriques Dias Morgado Dinis, Rodolfo Alexandre Duarte Oliveira, Luís Filipe Lourenço Bernardo, DEE Group Author

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Traditionally, Low Earth Orbit (LEO) satellite networks use hard handovers when a Mobile Terminal (MT) moves between the footprints of two satellites. Such approach introduces a transitory disconnection interval, which may limit the capacity to provide demanding real-time requirements. A soft- handover approach that applies distributed packet combining on a satellite diversity scenario is proposed in this paper. Considering inexpensive MT hardware and low transmission powers, the paper analyses the performance gains and the difficulties that are associated to different Doppler and time-of-arrival shifts when the MT signal is broadcast to two satellites during the short handover period where both satellite's footprint overlap. A Single-Carrier with Frequency Domain Equalization (SC-FDE) transmission technique is considered in this paper. It is shown that it is possible to have an inter-satellite handover almost without quality of service (QoS) degradation for a Satellite Network Diversity Multiple Access (S-NDMA) scheme.

Original language	Unknown
Title of host publication	IEEE Vehicular Technology Conference
Pages	1-5
DOIs	https://doi.org/10.1109/VTCFall.2013.6692061
Publication status	Published - 1 Jan 2013
Event	IEEE 78th Vehicular Technology Conference (VTC2013-Fall) - Duration: 1 Jan 2013 → …

Conference

Conference	IEEE 78th Vehicular Technology Conference (VTC2013-Fall)
Period	1/01/13 → …

Access to Document

10.1109/VTCFall.2013.6692061

http://oa.uninova.pt/5801/

Cite this

Montezuma de Carvalho, P. M. D. A. B., Pinto, P. D. C. L. D. F., Dinis, R. M. H. D. M., Oliveira, R. A. D., Bernardo, L. F. L., & DEE Group Author (2013). A Soft-Handover Scheme for LEO Satellite Networks. In IEEE Vehicular Technology Conference (pp. 1-5) https://doi.org/10.1109/VTCFall.2013.6692061

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title = "A Soft-Handover Scheme for LEO Satellite Networks",

abstract = "Traditionally, Low Earth Orbit (LEO) satellite networks use hard handovers when a Mobile Terminal (MT) moves between the footprints of two satellites. Such approach introduces a transitory disconnection interval, which may limit the capacity to provide demanding real-time requirements. A soft- handover approach that applies distributed packet combining on a satellite diversity scenario is proposed in this paper. Considering inexpensive MT hardware and low transmission powers, the paper analyses the performance gains and the difficulties that are associated to different Doppler and time-of-arrival shifts when the MT signal is broadcast to two satellites during the short handover period where both satellite's footprint overlap. A Single-Carrier with Frequency Domain Equalization (SC-FDE) transmission technique is considered in this paper. It is shown that it is possible to have an inter-satellite handover almost without quality of service (QoS) degradation for a Satellite Network Diversity Multiple Access (S-NDMA) scheme.",

keywords = "Soft Handover, Satellite Network Diversity Multiple Access (S-NDMA), Satellite Diversity, Packet Com- bining, LEO Satellite Network, Analytical Performance Evaluation.",

author = "{Montezuma de Carvalho}, {Paulo Miguel de Ara{\'u}jo Borges} and Pinto, {Paulo da Costa Lu{\'i}s da Fonseca} and Dinis, {Rui Miguel Henriques Dias Morgado} and Oliveira, {Rodolfo Alexandre Duarte} and Bernardo, {Lu{\'i}s Filipe Louren{\cc}o} and {DEE Group Author}",

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doi = "10.1109/VTCFall.2013.6692061",

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A Soft-Handover Scheme for LEO Satellite Networks. / Montezuma de Carvalho, Paulo Miguel de Araújo Borges ; Pinto, Paulo da Costa Luís da Fonseca ; Dinis, Rui Miguel Henriques Dias Morgado ; Oliveira, Rodolfo Alexandre Duarte ; Bernardo, Luís Filipe Lourenço; DEE Group Author.

IEEE Vehicular Technology Conference. 2013. p. 1-5.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - Traditionally, Low Earth Orbit (LEO) satellite networks use hard handovers when a Mobile Terminal (MT) moves between the footprints of two satellites. Such approach introduces a transitory disconnection interval, which may limit the capacity to provide demanding real-time requirements. A soft- handover approach that applies distributed packet combining on a satellite diversity scenario is proposed in this paper. Considering inexpensive MT hardware and low transmission powers, the paper analyses the performance gains and the difficulties that are associated to different Doppler and time-of-arrival shifts when the MT signal is broadcast to two satellites during the short handover period where both satellite's footprint overlap. A Single-Carrier with Frequency Domain Equalization (SC-FDE) transmission technique is considered in this paper. It is shown that it is possible to have an inter-satellite handover almost without quality of service (QoS) degradation for a Satellite Network Diversity Multiple Access (S-NDMA) scheme.

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