An Effective Handover Scheme Based on Antenna Selection in Ground–Train Distributed Antenna Systems

Liu, Ziyue; Fan, Pingzhi

doi:10.1109/tvt.2014.2300154

Cited by 39 publications

(36 citation statements)

References 16 publications

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“…3 is the number of operations for the Hungarian method and ≈ 13KL is the number of operations for expressions (20), (22), and (23). Thus, the total complexity of the dual decomposition is ≈ I × (KL) 3 + 13KL .…”

Section: Complexity Analysis Of the Proposed Resource Allocation Smentioning

confidence: 99%

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Transmit Power Minimization and Base Station Planning for High-Speed Trains with Multiple Moving Relays in OFDMA Systems

Ghazzai

Bouchoucha

Alsharoa

et al. 2016

IEEE Trans. Veh. Technol.

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Section: Complexity Analysis Of the Proposed Resource Allocation Smentioning

confidence: 99%

“…This issue has been investigated in literature by proposing various handover schemes. For instance, in [22], a power allocation scheme for a distributed antenna system is implemented to enhance the handover failure probability in a two-link architecture is proposed. Another soft handover scheme based on multi-radio access technology is proposed in [23].…”

mentioning

confidence: 99%

Transmit Power Minimization and Base Station Planning for High-Speed Trains with Multiple Moving Relays in OFDMA Systems

Ghazzai

Bouchoucha

Alsharoa

et al. 2016

IEEE Trans. Veh. Technol.

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“…DAS is considered as the most effective solution to deal with the HO issue in HSR mobile communications [6]. In such networks, multiple remote antenna units (RAUs) spread along the rail side and are connected to a central controller unit (CU) via optical fibres, where, a train does not need to HO between RAUs that fall under the same CU control, thanks to the moving frequency concept (MFC), in which a frequency pattern in each RAU moves/switches along with the train, so that the train is always served by the same frequency [7].…”

Section: Introductionmentioning

confidence: 99%

Distributed antenna system based frequency switch scheme evaluation for high-speed railways

Ali

Wang

Zhu

et al. 2017

2017 IEEE International Conference on Communications (ICC)

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Abstract-High-speed railway (HSR) has witnessed a huge growth globally, and now is reaching a maximum speed of 575 km/h. This record of speed makes mobile communications difficult for HSR since the handover (HO) frequency increases which results in a high loss of connectivity. Based on distributed antenna systems (DASs), this paper utilizes the two-hop network architecture for HSR broadband wireless communication systems. With the target of achieving high system capacity, superior transmission reliability, and consequently high-quality broadband wireless communication service for passengers in HSR. Moreover, a Frequency Switch (FSW) scheme is proposed for the two-hop network architecture to alleviate the frequent HO issue in traditional HSR wireless communication systems where HO generally happens between the successive remote antenna units (RAUs) connecting to the same central unit (CU) control. The FSW scheme provides mobility robustness signalling process that guarantees a successful frequency switching instead of HO, and reduces the probability of radio link failure (RLF) compared to HO process in traditional HSR systems, where the HO failure (HOF) rate is about 21%. The analytical results show that the proposed scheme outperforms traditional HO schemes.

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“…The front antenna performs the HO scheme with the target cell while the rear antenna keeps the current link with the serving cell. The third one is distributed antenna system (DAS) based approach [6]. DAS based system architecture provides a twofold target of enhancing the spectrum efficiency and the HO algorithm performance.…”

Section: Introductionmentioning

confidence: 99%

An Expedited Predictive Distributed Antenna System Based Handover Scheme for High-Speed Railway

Ali

Wang

Zhu

et al. 2017

GLOBECOM 2017 - 2017 IEEE Global Communications Conference

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Abstract-High-speed train has drawn considerable attention and become one of the most preferable conveyance mechanism. Each year the manufacture corporations reach a higher speed record which is expected to attain 1000 km/h by 2021 using hyperloop one technology. Moving at such a high speed results in a high handover (HO) rate which makes it challenging for high speed railway (HSR) mobile wireless communication to preserve steady link performance. Employing distributed antenna systems (DASs) along with the two-hop architecture, this paper proposes a fast predictive HO algorithm. In this strategy, the serving cell starts the HO preparation phase in advance by inferring the train current location. Issuing the HO preparation phase in advance reduces the HO latency and reduces the HO command failure probability as well. Lower HO command failure probability means lower HO failure probability which could greatly improve the end-users quality of services (QoS). The analytical results show that the proposed scheme performs better compared with the conventional HO scheme.Index Terms-Mobile Relay, Distributed Antenna System, Handover, Frequency Switch, High-speed Railway. I. INTRODUCTIONCurrently, more and more attempts have been performed to satisfy the ever-growing desire for internet access due to the trending application which connects people all over the globe. This kind of popularity results in wide diverse requirements which range from simple web browsing to mobile video communication, e.g. video conferencing. Lately, high-speed railway (HSR) mobile communication system has paid a lot of attention on providing internet access with high quality of service (QoS) [1] to entice more travelers. With the global tendency towards green environment, the gradual prosperity of high-speed railway (HSR) will make it one of the most leading transportation means in the near feature. Yet, the current available mobile broadband wireless communication technology is only suitable for low-to-medium-mobility scenarios.HSR broadband wireless communication encounters challenges from time varying channel, frequency selective fading, and high penetration loss of 10-40 dB. More importantly, high moving speed leads to frequent handover (HO). For example, an HO would be required every 10 s assuming a coverage area of 1 km in conjunction with a speed of 360 km/h. The frequent HO results in long delay, high packet loss, and high drop off rate, degrading the overall system performance.The current HO solution can be divided into three main categories. The first category is the location based triggering using the global positioning system (GPS) signalling [2,3].

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An Effective Handover Scheme Based on Antenna Selection in Ground–Train Distributed Antenna Systems

Cited by 39 publications

References 16 publications

Transmit Power Minimization and Base Station Planning for High-Speed Trains with Multiple Moving Relays in OFDMA Systems

Transmit Power Minimization and Base Station Planning for High-Speed Trains with Multiple Moving Relays in OFDMA Systems

Distributed antenna system based frequency switch scheme evaluation for high-speed railways

An Expedited Predictive Distributed Antenna System Based Handover Scheme for High-Speed Railway

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