An efficient scheme to reduce handoff dropping in LEO satellite systems

Kalyanasundaram, Suresh; Chong, Edwin K. P.; Shroff, Ness B.

doi:10.1109/reldis.1998.740536

Cited by 12 publications

(17 citation statements)

References 18 publications

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“…An interesting variation of the FCA based handover scheme is Channel Sharing Handover [21]. Channel Sharing Handover uses a channel allocation scheme called channel sharing scheme [21], where channels can be shared between adjacent cells.…”

Section: ) Fca Based Handover Schemesmentioning

confidence: 99%

“…Channel Sharing Handover uses a channel allocation scheme called channel sharing scheme [21], where channels can be shared between adjacent cells. A pair of adjacent cells is called a meta-cell.…”

Section: ) Fca Based Handover Schemesmentioning

confidence: 99%

“…A pair of adjacent cells is called a meta-cell. Two adjacent cells that form a meta-cell are called the component cells [21]. We can now describe this FCA scheme using channel sharing between component cells.…”

Section: ) Fca Based Handover Schemesmentioning

confidence: 99%

“…Here, we assume the movement of users is towards higher numbered cells, i.e., users move from cell 1 to cell 2, and so on. When there is a new call in cell i, it is given a channel if there is any idle channel in the meta cell (i, i + 1), otherwise, the call is blocked [21]. Consequently, the call can "carry" the channel to cell (i + 1) during handover.…”

Section: ) Fca Based Handover Schemesmentioning

confidence: 99%

“…Handover calls arriving at cell i are assigned a channel from the meta-cell (i, i + 1) if a channel is idle. If the call has already a channel from the meta-cell (i − 1, i), it is allowed to carry the same channel in cell i, and is queued in a FIFO queue for acquiring channels belonging to meta-cell (i, i + 1) [21]. However, during handover, a call is dropped if it is using a channel from the meta-cell (i − 2, i − 1).…”

Section: ) Fca Based Handover Schemesmentioning

confidence: 99%

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

Chowdhury¹,

Atiquzzaman²,

Ivancic³

2006

IEEE Commun. Surv. Tutorials

127

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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: ) Fca Based Handover Schemesmentioning

confidence: 99%

Section: ) Fca Based Handover Schemesmentioning

confidence: 99%

Section: ) Fca Based Handover Schemesmentioning

confidence: 99%

Section: ) Fca Based Handover Schemesmentioning

confidence: 99%

Section: ) Fca Based Handover Schemesmentioning

confidence: 99%

See 3 more Smart Citations

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

Chowdhury¹,

Atiquzzaman²,

Ivancic³

2006

IEEE Commun. Surv. Tutorials

127

View full text Add to dashboard Cite

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A time‐based reservation scheme for managing handovers in satellite systems

Boukhatem

Gaïti²,

Pujolle

2003

Int J Network Mgmt

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International audienceThis paper proposes a Time-based Channel Reservation Algorithm (TCRA) suitable for managing handover and call admission control procedures in future mobile satellite systems. These systems are characterized by a high rate of handover attempts which can degrade significantly their performance. Therefore, we propose TCRA, a scheme which guarantees a null handover failure probability by managing the channel through a reservation strategy in the cells to be crossed by the user. Based on the feature that the satellite motion is predictable and deterministic, the scheme tries to maximize the channel utilization and enables the system to handle the most important number of users. The performance of the TCRA scheme has been examined by simulations and compared to the Guaranteed Handover (GH) scheme. The results show the behaviour of the algorithm and its performance

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TCRA: a time‐based channel reservation scheme for handover requests in LEO satellite systems

Boukhatem

Beylot

Gaïti

et al. 2003

Satell Commun Network

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SUMMARYIn this paper, we propose a time-based channel reservation algorithm (TCRA) suitable for handover and call admission control procedures in future mobile satellite systems. These systems are characterized by a high rate of handover attempts which can degrade significantly their performance. Therefore, we propose TCRA, a scheme which guarantees a null handover failure probability by using a channel reservation strategy in the cells to be crossed by the user. The performance of TCRA has been compared to the guaranteed handover (GH) scheme. The TCRA reservation method has the advantage of a better channel utilization by locking the resources only for their expected time of use. A mathematical model has been developed for both schemes, and its results have been validated through simulations.

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An efficient scheme to reduce handoff dropping in LEO satellite systems

Cited by 12 publications

References 18 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

A time‐based reservation scheme for managing handovers in satellite systems

TCRA: a time‐based channel reservation scheme for handover requests in LEO satellite systems

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