Wireless channel loss analysis - a case study using WiFi-Direct

Jiang, Feng; Liu, Zhi; Ji, Yusheng

doi:10.1109/iwcmc.2014.6906364

Cited by 15 publications

(14 citation statements)

References 11 publications

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“…"group owner"). WFD also provides a way to set up multiple networks at the same time, thus enabling multiple devices to communicate IP data directly between each other [10].…”

Section: Current D2d Technology Candidatesmentioning

confidence: 99%

“…It is evident that for future D2D systems to benefit consistently from WFD, it is necessary to minimize the signaling overheads of neighbor discovery [8], [10]. This signaling load can be reduced with the help of an authoritative entity (for example, a mobile network operator), where several key functions of D2D connectivity would be managed by the cellular network infrastructure [4].…”

Section: Network-assisted D2d Communicationsmentioning

confidence: 99%

See 1 more Smart Citation

3GPP LTE-Assisted Wi-Fi-Direct: Trial Implementation of Live D2D Technology

Pyattaev¹,

Hošek²,

Johnsson³

et al. 2015

ETRI J

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This paper is a first-hand summary on our comprehensive live trial of cellular-assisted device-todevice (D2D) communications currently being ratified by the standards community for next-generation mobile broadband networks. In our test implementation, we employ a full-featured 3GPP LTE network deployment and augment it with all necessary support to provide realtime D2D connectivity over emerging Wi-Fi-Direct (WFD) technology. As a result, our LTE-assisted WFD D2D system enjoys the required flexibility while meeting the existing standards in every feasible detail. Further, this paper provides an account on the extensive measurement campaign conducted with our implementation. The resulting real-world measurements from this campaign quantify the numerical effects of D2D functionality on the resultant system performance. Consequently, they shed light on the general applicability of LTE-assisted WFD solutions and associated operational ranges.Keywords: 3GPP LTE, cellular assistance, commercial opportunities, device-to-device, live trial, performance measurements, standardization, Wi-Fi-Direct. Manuscript received Feb. 10, 2015; revised May 15, 2015; accepted June 4, 2015. The research described in this paper was financed by the National Sustainability Program under grant LO1401. For the research, infrastructure of the SIX Center was used.Alexander Pyattaev (alexander.pyattaev@tut.fi), Mikhail Gerasimenko (mikhail. gerasimenko@tut.fi), Aleksandr Ometov (aleksandr.ometov@tut.fi), Sergey Andreev (sergey. andreev@tut.fi), and Yevgeni Koucheryavy (yk@cs.tut.fi) are with the Department of Electronics and Communications Engineering, Tampere University of Technology, Finland.Jiri Hosek (corresponding author, hosek@feec.vutbr.cz), Radko Krkos (krkos@ phd.feec.vutbr.cz), Pavel Masek (xmasek12@phd.feec.vutbr.cz), Jakub Sedy (jakub.sedy@ phd.feec.vutbr.cz), and Vit Novotny (novotnyv@feec.vutbr.cz) are with the Department of Telecommunications, Brno University of Technology, Czech Republic.Kerstin Johnsson (kerstin.johnsson@intel.com) is with the Wireless Communication Laboratory, Intel Corporation, Santa Clara, CA, USA. I. IntroductionDevice-to-device (D2D) communications technology as part of the 3rd Generation Partnership Project (3GPP) Long-Term Evolution (LTE) Release 12 specification [1] enables novel unprecedented opportunities for next-generation peer-to-peer (P2P) and location-based applications and services [2]. Most of these new opportunities emerge from discovering and exploiting user proximity, which is provided by virtue of location services in contemporary mobile broadband networks [3]. Together with improvements in network capacity, data delivery latency, individual user throughput, and energy efficiency, D2D also brings along attractive new business cases for network and service providers.With our preliminary research [4]-[5], we have identified numerous benefits that could become available if a coordinated, network-assisted D2D technology is deployed by network operators. On the other hand, introducing D2D te...

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“…"group owner"). WFD also provides a way to set up multiple networks at the same time, thus enabling multiple devices to communicate IP data directly between each other [10].…”

Section: Current D2d Technology Candidatesmentioning

confidence: 99%

Section: Network-assisted D2d Communicationsmentioning

confidence: 99%

3GPP LTE-Assisted Wi-Fi-Direct: Trial Implementation of Live D2D Technology

Pyattaev¹,

Hošek²,

Johnsson³

et al. 2015

ETRI J

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“…The results showed an increased wireless capacity gain, improved degree of spatial reuse, and smaller interference. The authors in [10] presented a Gilbert-Elliot model to analyze the performance of a loss model of a wireless channel between two mobile phones using the WD technology. However, the experiment was performed for User Datagram Protocol (UDP) packets without taking into consideration the PHY layer parameters.…”

Section: Introductionmentioning

confidence: 99%

On the Design of a WiFi Direct 802.11ac WLAN under a TGn MIMO Multipath Fading Channel

2017

KSII TIIS

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WiFi Direct (WD) is a state of the art technology for a Device-to-Device (D2D) communication in 802.11 networks. The performance of the WD system can be significantly affected by some key factors such as the type of application, specifications of MAC and PHY layer parameters, and surrounding environment etc. It is, therefore, important to develop a system model that takes these factors into account. In this paper, we focus on investigating the design parameters of the PHY layer that could maximize the efficiency of the WD 802.11 system. For this purpose, a basic theoretical model is formulated for a WD network under a 2x2 Multiple In Multiple Out (MIMO) TGn channel B model. The design level parameters such as input symbol rate and antenna spacing, as well as the effects of the environment, are thoroughly examined in terms of path gain, spectral density, outage probability and Packet Error Rate (PER). Thereafter, a novel adaptive algorithm is proposed to choose optimal parameters in accordance with the Quality of Experience (QoE) for a targeted application. The simulation results show that the proposed method outperforms the standard method thereby achieving an optimal performance in an adaptive manner.

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“…Therefore, each new user cannot arbitrarily choose a left and a right view for synthesis with DIBR. The second challenge is that WiFi networks frequently suffer from wireless erasure, and different clients suffer from different loss probabilities due to varying channel conditions [11], [12], [13]. In 2D and single-view 3D videos, the view loss probability for each user can be easily derived according to the selected bit-rate, channel, and the setting of MIMO (e.g., antennas, spatial streams) in 802.11 networks.…”

Section: Introductionmentioning

confidence: 99%

“…II. SYSTEM MODEL This paper considers single-cell video multicast in IEEE 802.11 networks, where the views transmitted by different bit-rates and on different channels are associated with different loss probabilities [11], [12], [13]. Currently, many video services, such as Youtube and Netflix, require reliable transmissions since Flash or MPEG DASH [9] are exploited for video streaming.…”

Section: Introductionmentioning

confidence: 99%

Efficient Error-Resilient Multicasting for Multi-View 3D Videos in Wireless Network

Lin¹,

Yang

Lee

et al. 2016

2016 IEEE Global Communications Conference (GLOBECOM)

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With the emergence of naked-eye 3D mobile devices, mobile 3D video services are becoming increasingly important for video service providers, such as Youtube and Netflix, while multi-view 3D videos have the potential to inspire a variety of innovative applications. However, enabling multi-view 3D video services may overwhelm WiFi networks when every view of a video are multicasted. In this paper, therefore, we propose to incorporate depth-image-based rendering (DIBR), which allows each mobile client to synthesize the desired view from nearby left and right views, in order to effectively reduce the bandwidth consumption. Moreover, when each client suffers from packet losses, retransmissions incur additional bandwidth consumption and excess delay, which in turn undermines the quality of experience in video applications. To address the above issue, we first discover the merit of view protection via DIBR for multi-view video multicast using a mathematical analysis and then design a new protocol, named Multi-View Group Management Protocol (MVGMP), to support the dynamic join and leave of users and the change of desired views. The simulation results demonstrate that our protocol effectively reduces bandwidth consumption and increases the probability for each client to successfully playback the desired views in a multi-view 3D video.

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Wireless channel loss analysis - a case study using WiFi-Direct

Cited by 15 publications

References 11 publications

3GPP LTE-Assisted Wi-Fi-Direct: Trial Implementation of Live D2D Technology

3GPP LTE-Assisted Wi-Fi-Direct: Trial Implementation of Live D2D Technology

On the Design of a WiFi Direct 802.11ac WLAN under a TGn MIMO Multipath Fading Channel

Efficient Error-Resilient Multicasting for Multi-View 3D Videos in Wireless Network

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