Distributed Antenna Systems for Mobile Communications in High Speed Trains

Wang, Jiangzhou; Zhu, Huiling; Gomes, Nathan J.

doi:10.1109/jsac.2012.120502

Cited by 362 publications

(161 citation statements)

References 27 publications

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“…Jiangzhou Wang, Huiling Zhu, Nathan J. Gomes described about the concept for mobile communications in high speed trains in distributed environment [8]. In this they proposed the work on broadband wireless communications provision for high speed train.…”

Section: Kmohammadi and H Hamidi Implemented Fault Tolerant Executimentioning

confidence: 99%

Optimized Fault Tolerance in Distributed Environment

Kaur¹,

Thind²

2014

IJCA

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VANETs are distributed and self organizing communication networks built up from travelling vehicles. In this research, we have considered controlled latency process by managing the time span between updates for fault tolerance and finding alternative route for vehicles. Delay shown in proposed work is very less than shown in previous techniques due to time management in alternative route selection concept in vehicular adhoc network.

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Section: Kmohammadi and H Hamidi Implemented Fault Tolerant Executimentioning

confidence: 99%

Optimized Fault Tolerance in Distributed Environment

Kaur¹,

Thind²

2014

IJCA

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“…Table.1 is a detailed comparison of high-speed rail mobile communication systems in countries or regions [1][2] . 2 GSM-R Technology 2.1 The maturity and historical mission of GSM-R technology GSM-R has its undeniable, epoch-making significance and role, through the mature, long-term commercial and standardized GSM technology into the railway system, improve the efficiency of railway operation and management, and save the costs of construction and operation Its support for roaming (such as switching) can automatically control the train during the entire run, making it to be possible for the rail system to use unified voice and data transmission platforms [3][4] . But GSM-R is the technology of the eighties and nineties of last century, today, wireless communications have made revolutionary progress and breakthrough, various shortcomings and bottlenecks are inevitably exposed, the narrow band characteristics only meet the existing low data rate of the train control train scheduling business needs, the allocation of 4 MHz bandwidth to make this situation to be worse.…”

Section: Introductionmentioning

confidence: 99%

The Evolution of Key Technologies of Mobile Communication Systems for High-speed Railway

Pan¹

2017

Proceedings of the 2017 2nd International Conference on Materials Science, Machinery and Energy Engineering (MSMEE 2017)

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Abstract:With the rapid economic development, science and technology are gradually progressing, high-speed railway attracts more and more attention. Since the birth of the high-speed railway , along with the demand for mobile communications, part of the demand from the high-speed train train control and scheduling system, which is the core of high-speed train; the other part is from the demand of passengers. In the past, GSM-R technology is more mainstream high-speed railway mobile communication technology, in addition, TGV and ICE applications such as mobile communication system is also a typical communication technology. In the future, with the 5G era approaching, the high-speed railway communication technology based on 5G will become the trend, it may soon replace GSM-R technology to become a new generation of mobile communication key technology, and high-speed railway wireless network access system will also be put into operation in the near future. Looking forward to through research and discussion, high-speed railway communication technology can be further developed and extended.

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“…Since multiple-input multiple-output (MIMO) technology is capable of significantly improving the capacity and reliability of wireless systems, it has been widely studied and applied to the existing wireless systems [1][2][3]. In order to achieve more gains as well as to simplify the required signal processing, massive MIMO has been proposed in [4][5][6][7][8] As a highly spectrally efficient technology, massive MIMO is indispensable for future wireless communication system or architecture [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

On the use of H-inf criterion in channel estimation and precoding in massive MIMO systems

Wang

Feng³

2016

Sci. China Inf. Sci.

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In this paper, a channel estimation (CE) and precoding scheme by using H-infinity (H-inf) criterion for mitigation of pilot contamination (PC) in massive multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) systems is investigated. Firstly, different thresholds in H-inf CE and precoding are considered. Secondly, asymptotic analysis is presented to simplify the H-inf precoding, which shows that the complexity of an order of magnitude is reduced. Thirdly, approximate downlink achievable data rates per user are studied for different CE and precoding schemes, such as H-inf and minimum mean square error (MMSE) CE, MMSE, zero-forcing (ZF) and H-inf precoding. The analysis shows that the proposed scheme can provide dual mitigation to the PC. That is, the H-inf CE mitigates the PC by adjusting its thresholds, and the H-inf precoding is utilized to suppress the PC by considering inter-cell interference. The numerical results show that joint use of H-inf CE and H-inf precoding outperforms existing schemes in terms of mitigation to the PC.

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Distributed Antenna Systems for Mobile Communications in High Speed Trains

Cited by 362 publications

References 27 publications

Optimized Fault Tolerance in Distributed Environment

Optimized Fault Tolerance in Distributed Environment

The Evolution of Key Technologies of Mobile Communication Systems for High-speed Railway

On the use of H-inf criterion in channel estimation and precoding in massive MIMO systems

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