IEEE 802.11-18/xxxxr0 NGV Doppler Channel Modeling Overview
Explore the development of multipath fading channel models with Doppler for next-generation V2X communications within the IEEE NGV study group. Detailed insights on Car-to-Car (C2C) channel models are provided, including scenarios like Rural LOS, Highway LOS, and Urban Crossing NLOS. Gain valuable references for NGV channel model development.
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May 2018 doc.: IEEE 802.11-18/xxxxr0 NGV Doppler Channel Modeling Date: 2018-05-08 Authors: Name Affiliations Address Phone email Hongyuan Zhang Marvell 5488 Marvell Ln, Santa Clara, CA 95054 hongyuan@marvell.com Rui Cao ruicao@marvell.com Submission Slide 1 Hongyuan Zhang, Marvell
May 2018 doc.: IEEE 802.11-18/xxxxr0 Introduction IEEE NGV study group has been formed to study the evolution of 802.11 technology for next-generation V2X communications [1]. It is important to develop multipath fading channel models with Doppler for NGV studies. In this contribution, we provide an overview of one set of Car-to-Car (C2C) Channel models. Submission Slide 2 Hongyuan Zhang, Marvell
May 2018 doc.: IEEE 802.11-18/xxxxr0 C2C Channel Model One set of C2C channel models were introduced for DSRC channels and used for tests [2] These models stem from three field trials [3, 4, 5], and define the RMS delay spread and Doppler profiles for five common scenarios: Rural LOS, Highway LOS, Urban Approaching LOS, Urban Crossing NLOS and Highway NLOS These five C2C channel models can be good reference for NGV channel model development. Submission Slide 3 Hongyuan Zhang, Marvell
May 2018 doc.: IEEE 802.11-18/xxxxr0 C2C Channel Scenarios [2] Rural LOS: Intended primarily as a reference result, this channel applies in very open environments where other vehicles, buildings and large fences are absent. Urban Approaching LOS: Two vehicles approaching each other in an Urban setting with buildings nearby. Urban Crossing NLOS: Two vehicles approaching an Urban blind intersection with other traffic present. Buildings/fences present on all corners. Submission Slide 4 Hongyuan Zhang, Marvell
May 2018 doc.: IEEE 802.11-18/xxxxr0 C2C Channel Scenarios [2] Highway LOS: Two cars following each other on Multilane inter- region roadways such as Autobahns. Signs, overpasses, hill-sides and other traffic present. Highway NLOS: As for Highway LOS but with occluding trucks present between the vehicles. Submission Slide 5 Hongyuan Zhang, Marvell
May 2018 doc.: IEEE 802.11-18/xxxxr0 C2C Model Values Table 1: Rural LOS Parameters Table 4: Highway LOS Parameters Tap1 Tap2 Tap3 Units dB ns Km/h Tap1 Tap2 Tap3 Tap4 Units Power Delay Doppler Profile Power Delay Doppler Profile 0 0 0 -14 83 90 -17 183 -54 0 0 0 -10 100 126 -15 167 -90 -20dB 500ns 162Km/h HalfBT HalfBT HalfBT Static HalfBT HalfBT Static Table 2: Urban Approaching LOS Parameters Table 5: Highway NLOS Parameters Tap1 Tap2 Tap3 Tap4 Units Tap1 Tap2 Tap3 Tap4 Units -7dB 700ns 162Km/h HalfBT Power Delay Doppler Profile 0 0 0 -8 -10 183 -29 -15 dB 333 ns 90Km/h HalfBT Power Delay Doppler Profile 0 0 0 -2 -5 117 43 200 126 433 -90 Static HalfBT HalfBT Static HalfBT HalfBT Table 3: Urban Crossing NLOS Parameters Tap1 Tap2 Tap3 Tap4 Units Power Delay Doppler Profile 0 0 0 -3 -5 -10dB 533ns 108Km/h HalfBT 267 54 400 -18 Static HalfBT HalfBT Submission Slide 6 Hongyuan Zhang, Marvell
May 2018 doc.: IEEE 802.11-18/xxxxr0 Example Simulation Simulation settings for C2C DSRC 10MHz, 1Tx-1Rx-1SS LENGTH: 300B for DSRC safety applications Sample-by-sample C2C Doppler modeling Multipath channel evolves for every sample for the Doppler effect Submission Slide 7 Hongyuan Zhang, Marvell
May 2018 doc.: IEEE 802.11-18/xxxxr0 PER Performance of C2C Channels DSRC 10MHz, 1Rx, 1SS, QPSK-1/2 0 10 -1 PER 10 Rural LOS Highway LOS Urban Approaching LOS Highway NLOS Urban Crossing NLOS -2 10 SNR(dB) 2dB Submission Slide 8 Hongyuan Zhang, Marvell
May 2018 doc.: IEEE 802.11-18/xxxxr0 Summary C2C channels provide statistical models for five common car-to- car communication scenarios. These models can be helpful to the development of channel modeling for next-generation V2X communications. Sample-by-sample Doppler model and its PHY simulations are preferred for NGV to evaluate various application scenarios and frame formats. The simplified symbol by symbol Doppler model won t capture the Doppler shift effect (ICI) across sub-carriers. Exploring other models too, e.g. for longer range or other usage scenarios. Submission Slide 9 Hongyuan Zhang, Marvell
May 2018 doc.: IEEE 802.11-18/xxxxr0 Reference [1] Hongyuan Zhang and etc., 802.11 For Next Generation V2X Communications , IEEE 802.11-18/0513r2. [2] Kahn, Malik, IEEE 802.11 Regulatory SC DSRC Coexistence Tiger Team V2V Radio Channel Models, IEEE 802.11-14/0259r0. [3] Ian Tan, Wanbin Tang, Ken Laberteaux, Ahmad Bahai , Measurement and Analysis of Wireless Channel Impairments in DSRC Vehicular Communications, Electrical Engineering and Computer Sciences University of California at Berkeley, April 2008. [4] Paul Alexander, David Haley, Alex Grant , Cooperative Intelligent Transport Systems: 5.9-GHz Field Trials, Proceedings of The IEEE Volume:99 , Issue 7, July 2011 [5] Laura Bernado, Thomas Zemen, Fredrik Tufvesson, Andreas F. Molisch, Christoph F. Mecklenbrauker , Delay and Doppler Spreads of Non-Stationary Vehicular Channels for Safety Relevant Scenarios, May 2013 Submission Slide 10 Hongyuan Zhang, Marvell
