A Mode-Based Approach for Channel Modeling in Underground Tunnels under the Impact of Vehicular Traffic Flow

Sun, Zhi; Akyildiz, Ian F.

doi:10.1109/twc.2011.080611.100710

Cited by 17 publications

(15 citation statements)

References 25 publications

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“…These deterministic approaches employ ray-tracing (or ray-launching) to model the propagation environment constructed from a detailed database of all obstacles and their electrical properties. However, very recently, other analytical methods such as the uniform theory of diffraction (UTD), the Poisson summation formula and the saddle point method have been employed to model vehicular communications in tunnels [10]. The inherent drawbacks of deterministic models are their high computational cost and restricted suitability for a specific propagation environment.…”

Section: A Deterministic Modelsmentioning

confidence: 99%

“…The Rice PDF is suitable for V-V channels when the LOS path is unobstructed [56]. Apart from the Rayleigh and Rice, the literature contains several other PDFs based on the general model of equation (10). More specifically, [55] contains the PDF for an arbitrary number of random specular components with statistically dependent amplitudes and no diffuse part, i.e., 0…”

Section: A First Order Statistical Characterizationmentioning

confidence: 99%

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Generic stochastic modeling of vehicle-to-vehicle wireless channels

Karadimas

Matolak

2014

Vehicular Communications

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We present a generic statistical characterization of the vehicle-to-vehicle (V-V) wireless channel by adopting a stochastic modeling approach. Our approach is based on the doubly underspread (DU) property of non-wide sense stationary uncorrelated scattering (non-WSSUS) wireless channels, with V-V channels pertaining to this category. DU channels exhibit explicit frequency and time intervals over which they are approximated as WSSUS. We call these intervals restricted time interval (RTI) and restricted bandwidth (RBW), and variations taking place inside them are characterized as small scale variations. Large scale variations take place outside RTI and RBW. In this paper, we focus on small scale variations, thus, our modeling finds its applicability within RTI and RBW. As practical V-V channels exhibit rapid

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Section: A Deterministic Modelsmentioning

confidence: 99%

Section: A First Order Statistical Characterizationmentioning

confidence: 99%

Generic stochastic modeling of vehicle-to-vehicle wireless channels

Karadimas

Matolak

2014

Vehicular Communications

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“…However, the link error caused by the multipath fading in underground tunnels is much more severe than the terrestrial wireless channels, since the wireless signals are confined to the internal space of the underground mines and tunnels [2], [3]. Moreover, the reflections and the diffractions on the obstructions inside the tunnels create even more severe multipath fading [4], [5].…”

mentioning

confidence: 99%

“…Specifically, according to our previous research on wireless channels in tunnel environments [2], [3], [4], [5], the channel characteristics in underground tunnels are significantly different from the terrestrial channel. First, due to the reflections on the tunnel walls, the propagation of electromagnetic (EM) waves form regular patterns (i.e.…”

mentioning

confidence: 99%

“…The effectiveness of excitation and reception of those modes are determined by the position of the transmitter and the receiver [2], [3]. Second, obstructions with random sizes and positions inside the tunnel, such as vehicles and machineries, cause additional loss and coupling of the propagation modes [4], [5]. Since the channel characteristics have straightforward influences on the channel capacity, it is necessary to analyze the capacity and outage behavior of the MIMO and cooperative communication systems based on the unique channel model in the underground tunnels, which have not been addressed by the research community so far, to the best of our knowledge.…”

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confidence: 99%

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Capacity and Outage Analysis of MIMO and Cooperative Communication Systems in Underground Tunnels

Sun

Akyildiz

Hancke

2011

IEEE Trans. Wireless Commun.

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Abstract-In underground mine and road tunnels, multipath fading is much more severe than in the terrestrial wireless channels. To overcome the multipath fading in underground tunnels, MIMO (Multiple Input Multiple Output) and Cooperative Communication system can be utilized. Since the underground channel characteristics are significantly different from those in terrestrial environments, the channel capacity and the outage behavior of such systems need to be investigated based on underground tunnel channel models, which had not been addressed by the research community yet. In this paper, the capacity distribution and outage probability of MIMO and cooperative communication systems are investigated in underground tunnel environments. Explicit formulas of the capacity distribution and outage probability are developed as functions of environmental conditions and system configurations. Based on the capacity and outage analysis in underground tunnels, the optimal MIMO antenna geometry design scheme is proposed for MIMO systems; and the cooperative relay assignment protocol is developed for cooperative communication systems. Simulations are conducted to validate the theoretical results.Index Terms-Underground tunnel, MIMO, cooperative communications, channel capacity, outage behavior, MIMO antenna geometry, cooperative relay assignment.

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A 3D Non-stationaryWideband Channel Model for MIMO V2V Tunnel Communications

Jiang

Gui

2019

Wireless Networks

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A Mode-Based Approach for Channel Modeling in Underground Tunnels under the Impact of Vehicular Traffic Flow

Cited by 17 publications

References 25 publications

Generic stochastic modeling of vehicle-to-vehicle wireless channels

Generic stochastic modeling of vehicle-to-vehicle wireless channels

Capacity and Outage Analysis of MIMO and Cooperative Communication Systems in Underground Tunnels

A 3D Non-stationaryWideband Channel Model for MIMO V2V Tunnel Communications

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