In-vehicle channel sounding in the 5.8-GHz band

Kukolev, Pavel; Chandra, Aniruddha; Mikulasek, Tomas; Prokeš, Aleš; Zemen, Thomas; Mecklenbräuker, Christoph F.

doi:10.1186/s13638-015-0273-x

Cited by 11 publications

(4 citation statements)

References 34 publications

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“…IEEE 802.11p operates on about 9 channels, as shown in Figure 2. The frequency band as described in Figure 2 CH172-5.860 GHz and CH184-5.920 GHz both are safety dedicated channels [32]. The first one provides a serious security solutions while the second plays a protective role against congestion on other channels [33].…”

Section: Ieee 80211pmentioning

confidence: 99%

Vehicular Ad Hoc Networks: Growth and Survey for Three Layers

Saad¹,

Rahem²,

Hussein³

et al. 2017

IJECE

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A vehicular ad hoc network (VANET) is a mobile ad hoc network that allows wireless communication between vehicles, as well as between vehicles and roadside equipment. Communication between vehicles promotes safety and reliability, and can be a source of entertainment. We investigated the historical development, characteristics, and application fields of VANET and briefly introduced them in this study. Advantages and disadvantages were discussed based on our analysis and comparison of various classes of MAC and routing protocols applied to VANET. Ideas and breakthrough directions for inter-vehicle communication designs were proposed based on the characteristics of VANET. This article also illustrates physical, MAC, and network layer in details which represent the three layers of VANET. The main works of the active research institute on VANET were introduced to help researchers track related advanced research achievements on the subject. Keyword: MAC INTRODUCTIONRoad accidents have become a global public safety issue. Accidents caused by strong mass destruction have been became the number one killer in the world. Vehicle networking in an intelligent transportation system provides an important foundation to resolve this issue. Vehicular ad hoc networks (VANETs) are self-organizing networks dedicated to inter-vehicle communication and design. VANET utilizes mobile ad hoc network (MANET) technology to instigate inter-vehicle communication [1] which allows the driver to obtain the status information of other vehicles (e.g., BVR speed range, direction, position, and brake pedal pressure) and real-time traffic dispatch.The design goal of VANET is to establish an inter-vehicle communication platform that improves traffic efficiency, safety, and reliability, as well as provides convenience and multiple access to drivers and improves passenger comfort [2], [3] During the 2003 ITU-T Telecommunication Standardization Conference on cars, national car experts proposed to reduce traffic accident by 50% [4] Over 90% of the deaths occur in low-income and middle-income countries, which have only 48% of the world's vehicles, according to the Global status report on road safety more than 1.2 million people die in road accidents every year. A wireless ad hoc network is a distributed architecture with emphasis on hopping (routing), self-organization, and decentralization. VANET is defined as a fast-moving outdoor communication network [5]. It is also referred to as a self-organized traffic information system. The basic idea behind VANETs is the exchange of data and

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Section: Ieee 80211pmentioning

confidence: 99%

Vehicular Ad Hoc Networks: Growth and Survey for Three Layers

Saad¹,

Rahem²,

Hussein³

et al. 2017

IJECE

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“…For example, it is possible to extract a tap-delay model (table of tap gains at different tap delays) by sampling the PDP. Next, utilizing the table, one may simulate the bit error rate (BER) as demonstrated in [49]. It must be noted here that only large scale decaying trend of the PDP is generally considered for such calculations.…”

Section: Power Delay Profilementioning

confidence: 99%

Serial subtractive deconvolution algorithms for time‐domain ultra wide band in‐vehicle channel sounding

Chandra¹,

Blumenstein²,

Mikulasek³

et al. 2015

IET Intelligent Transport Systems

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Ultra wide band (UWB) communication is expected to play a key role in next generation broadband intra vehicle wireless applications. The car compartment differs significantly from other well studied indoor or outdoor environments. Hence, channel sounding experiments are crucial for gaining a thorough knowledge of the UWB signal propagation characteristics in such a medium. Time domain channel sounding campaigns often employ some sort of deconvolution during measurement post processing as the measured signal in these experiments is the convolution of the channel response and the probing pulse which violates the Nyquist criterion. In this paper, a comparison of two variants of time-domain serial subtractive deconvolution algorithm, popularly known as CLEAN, is presented. Appropriate statistical metrics for assessing the relative merit of a deconvolution technique are identified in the context of intra vehicle UWB transmission, and the better algorithm is selected based on its performance over a standard IEEE channel simulation testbed. The chosen method is then applied to extract power delay profile and delay parameters from an empirical time domain sounding experiment performed inside a passenger car. The effects of passenger occupancy, transmitter receiver separation, and absence of direct transmission path are studied.

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“…The intra-vehicle signal propagation was measured in two 10-GHzwide unlicensed bandwidths, namely in the 3-11 GHz [1][2][3][4] and the 55-65 GHz bands [3][4][5]. The out-of vehicle channel measurement was carried out at the frequency 5.8 GHz used in the IEEE 802.11p standard [6]. The channel measurements were performed in the frequency domain using a vector network analyzer and in the time domain using a signal quality analyzer working as a signal generator and a digital sampling oscilloscope working as a receiver.…”

Section: Introductionmentioning

confidence: 99%

Antennas utilized for intra-vehicle 3–11GHz and 55–65GHz channel measurement

Mikulasek

Blumenstein

Prokeš

2016

2016 Progress in Electromagnetic Research Symposium (PIERS)

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In this work, antennas utilized for an intra-vehicle 3-11 GHz and 55-65 GHz channel measurement are described. A measurement antenna should not only provide a wide-band impedance bandwidth but also have a stable radiation pattern and a high fidelity factor. For the lower frequency band, a metal conical monopole antenna is proposed for its frequency stable Hplane omnidirectional radiation pattern. An open waveguide antenna (OWGA) and a substrate integrated waveguide slot antenna array are discussed for 55-65 GHz channel measurement. In the case of the OWGA, the effect of a flange on antenna properties is investigated. The suitability of these antennas for time domain measurement is discussed using fidelity factor. Both simulated and measured properties of the antennas are presented. The proposed antennas are also suitable for out-of-vehicle channel measurement. Most information about the channel measurement are freely available online: http://www.radio.feec.vutbr.cz/GACR-13-38735S/.

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In-vehicle channel sounding in the 5.8-GHz band

Cited by 11 publications

References 34 publications

Vehicular Ad Hoc Networks: Growth and Survey for Three Layers

Vehicular Ad Hoc Networks: Growth and Survey for Three Layers

Serial subtractive deconvolution algorithms for time‐domain ultra wide band in‐vehicle channel sounding

Antennas utilized for intra-vehicle 3–11GHz and 55–65GHz channel measurement

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