Providing enhanced cellular coverage in public transportation with smart relay systems

Phan, Vinh Van; Horneman, Kari; Ling, Yu; Vihriälä, Jaakko

doi:10.1109/vnc.2010.5698245

Cited by 24 publications

(12 citation statements)

References 3 publications

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“…To better serve the VUEs, using MRNs has been proposed and studied in [5][6][7]12,[26][27][28][29]. The idea of using mobile devices to relay information to UEs outside the coverage of a BS is not new.…”

Section: Related Studiesmentioning

confidence: 99%

“…Previous studies show that by using MRNs, in a coverage-limited scenario [6,7,11] or scenarios with insignificant interference [12,27,28], both the QoS of VUEs and the system throughput can be significantly improved. From a system perspective, several architectures have been proposed and compared for deploying MRNs to current mobile systems in [5,8].…”

Section: Related Studiesmentioning

confidence: 99%

“…Serving these vehicular users efficiently has been a problem that has recently attracted significant attention [5][6][7][8].…”

mentioning

confidence: 99%

“…According to the measurements in [9], VPL can be as high as 25 dB in a minivan at the frequency of 2.4-GHz, and higher VPLs are foreseeable in well-isolated vehicles and at higher frequency bands, e.g., the 3.6-GHz band allocated to future mobile communication systems [10]. One of the most promising solutions to better serve vehicular users is to use moving relay nodes (MRNs) mounted on top of public transportation vehicles [6,7,11]. An important advantage of using MRNs is that by the proper placement of the antennas on a vehicle, the VPL can be circumvented, and thereby, the quality of service (QoS) for the users can be significantly improved.…”

mentioning

confidence: 99%

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Interference management for moving networks in ultra-dense urban scenarios

Sui

Güvenç

Svensson

2015

J Wireless Com Network

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The number of users relying on broadband wireless connectivity while riding public transportation vehicles is increasing significantly. One of the promising solutions is to deploy moving base stations on public transportation vehicles to form moving networks (MNs) that serve these vehicular users inside the vehicles. In this study, we investigated the benefits and challenges in deploying MNs in ultra-dense urban scenarios. We identified that the key challenge limiting the performance of MNs in ultra-dense urban scenarios is inter-cell interference, which is exacerbated by the urban canyon effects. To address this challenge, we evaluated different inter-cell interference coordination and multi-antenna interference suppression techniques for MNs. We showed that in using MNs together with effective interference management approaches, the quality of service for users in vehicles can be significantly improved, with negligible impacts on the performance of regular outdoor users.

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Section: Related Studiesmentioning

confidence: 99%

Section: Related Studiesmentioning

confidence: 99%

“…Serving these vehicular users efficiently has been a problem that has recently attracted significant attention [5][6][7][8].…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Interference management for moving networks in ultra-dense urban scenarios

Sui

Güvenç

Svensson

2015

J Wireless Com Network

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“…One of the main radio access architectures proposed for mobility scenarios is the Mobile Relay Node (MRN). In previous works, it has been concluded that the inclusion of MRN installed on the top of the vehicle, improves the global network performance, as in [3] [4] [5] [6]. However, these works only addressed the performance of LTE downlink connection [3][4] [5].…”

Section: Introductionmentioning

confidence: 99%

Performance of LTE Mobile Relay Node Usage for Uplink Access in High Speed Railway Scenarios

Calle-Sánchez

Martinez‐de‐Rioja

Molina-García

et al. 2015

2015 IEEE 81st Vehicular Technology Conference (VTC Spring)

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Railway scenarios present several specific features that complicate the deployment of a radio communication network, especially for high speed trains. Nowadays, railway operators are evaluating the migration process from GSM-R to a new broadband system, like Long Term Evolution (LTE). In this paper, system-level simulations are carried out in order to evaluate overall network performance with Mobile Relay Node architecture for LTE uplink access in High Speed Railway scenarios. This implies developing specific tools for accurate characterization of such propagation environments.

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Outage probability and throughput of cooperative non‐orthogonal multiple access with moving relay in heterogeneous network

Khan

Chauhan

Singh³

2022

Trans Emerging Tel Tech

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The demand of high data rate, high quality of service (QoS), and seamless connectivity are growing continuously for vehicular communication over the last few years. Moving relay (MR) is one of the promising techniques to achieve these demands. In the past, heterogeneous network (HetNet) models with one MR on the top of the train have been proposed for high‐speed railway (HSR) using the orthogonal multiple access (OMA) technique. Cooperative non‐orthogonal multiple access (NOMA) is a promising multiple access technique for next‐generation wireless networks. This paper proposes one MR‐based HetNet model using the NOMA over Rayleigh fading channels for downlink communication. Here, half‐duplex (HD) type amplify and forward (AF) relay is used as MR for investigation. We derive the outage probability of a train‐user using the successive interference cancellation (SIC) technique and the outage probability of a cell‐edge‐user by using both direct and indirect signals via MR. The system throughput of the proposed NOMA system is also simulated by considering the effects of perfect and imperfect SIC. The simulation results show that cooperative NOMA provides lower outage performance in comparison with cooperative OMA and outage of vehicular user decreases with lower value of residual interference (RI). Also, the system throughput of the NOMA system decreases with higher values of residual interference. We use Monte Carlo simulation to verify the derived analytical results.

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Providing enhanced cellular coverage in public transportation with smart relay systems

Cited by 24 publications

References 3 publications

Interference management for moving networks in ultra-dense urban scenarios

Interference management for moving networks in ultra-dense urban scenarios

Performance of LTE Mobile Relay Node Usage for Uplink Access in High Speed Railway Scenarios

Outage probability and throughput of cooperative non‐orthogonal multiple access with moving relay in heterogeneous network

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