Impact of Moving Scatterers in Channel Correlations and Doppler Spectral Densities for Vehicle-to-vehicle Communications
LIANG Xiaolin① ZHAO Xiongwen①②③ LI Yitian①
①(School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China) ②(National Key Laboratory of Electromagnetic Environment, China Research Institute of Radio Wave Propagation, Qingdao 266107, China) ③(National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China)
Two typical Vehicle-To-Vehicle (V2V) propagation channel models are proposed for the first time. One is that the channel is composed by Single-Bounce Transmit (SBT) and Single-Bounce Receive (SBR)components. The other is that the channel is composed by Double-Bounce (DB) components. Based on the two models, another model consisting of SBT, SBR, DB, and LOS components is proposed. It is assumed that the local scatterers move with random velocities in random directions and the velocity distributions of the moving scatterers with low and high speed are assumed to follow exponential and Gaussian Mixture (GM) distributions, respectively. The complex channel gains of the proposed V2V channel models are proposed, and the corresponding AutoCorrelation Function (ACF) and Doppler Power Spectral Density (PSD) are derived. The theoretical results are also compared with the available PSDs by measurements and good agreements are found between them.
PÄTZOLD M, HOGSTAD B O, and YOUSSEF N. Modeling, analysis, and simulation of MIMO mobile-to-mobile fading channels[J]. IEEE Transactions on Wireless Communications, 2008, 7(2): 510-520. doi: 10.1109/TWC.2008.05913.
[2]
YUAN Y, CHENG X, WANG C, et al. 3D wideband non-stationary geometry-based stochastic models for non-isotropic MIMO vehicle-to-vehicle channels[J]. IEEE Transactions on Wireless Communications, 2015, 14(12): 6883-6895. doi: 10.1109/TWC.2015.2461679.
[3]
AVAZOV N and PÄTZOLD M. A novel wideband MIMO car-to-car channel model based on a geometrical semi-circular tunnel scattering model[J]. IEEE Transactions on Vehicular Technology, 2016, 65(3): 1070-1082. doi: 10.1109/TVT.2015. 2415256.
[4]
ACOSTA G, TOKUDA K, and INGRAM M. Measured joint Doppler-delay power profiles for vehicle-to-vehicle communications at 2.4 GHz[C]. Proceedings of IEEE GLOBECOM Conference, Dallas, TX, USA, 2004: 3813-3817. doi: 10.1109/GLOCOM.2004.1379082.
[5]
CHENG L, HENTY B E, STANCIL D D, et al. Mobile vehicle-to-vehicle narrow-band channel measurement and characterization of the 5.9 GHz Dedicated Short Range Communication (DSRC) frequency band[J]. IEEE Journal on Selected Areas in Communications, 2007, 25(8): 1501-1516. doi: 10.1109/JSAC.2007.071002.
[6]
ADHIKARI N, KUMAR A, and NOGHANIAN S. Multiple antenna channel measurements for car-to-car communication [J]. IEEE Antennas and Wireless Propagation Letters, 2016, 15: 674-677. doi: 10.1109/LAWP.2015.2468221.
ZHAO X, GUAN L, LIANG X, et al. Signal amplitude and Doppler spectrum distribution study for indoor device-to- device radio channels[J]. Chinese Journal of Radio Science, 2015, 30(3): 583-588. doi: 10.13443/j.cjors.2014061602.
[8]
BORHANI A and PÄTZOLD M. A unified disk scattering model and its angle of-departure and time-of-arrival statistics [J]. IEEE Transactions on Vehicular Technology, 2013, 62(2): 473-485. doi: 10.1109/TVT.2012.2227859.
[9]
PHAM V H, TAIEB M H, CHOUINARD J Y, et al. On the double Doppler effect generated by scatterer motion[J]. REV Journal on Electronics and Communications, 2011, 1(1): 30-37.
[10]
ROY S, HUYNH H T, and FORTIER P. Compound Doppler spread effects of subscriber motion and scatterer motion[J]. AEU-International Journal of Electronics and Communications, 2003, 57(4): 237-246.
[11]
ZAJI? A G. Impact of moving scatterers on vehicle-to- vehicle narrowband channel characteristics[J]. IEEE Transactions on Vehicular Technology, 2014, 63(7): 3094-3106. doi: 10.1109/ TVT.2014.2299239.
[12]
BORHANI A and PÄTZOLD M. Correlation and spectral properties of vehicle-to-vehicle channels in the presence of moving scatterers[J]. IEEE Transactions on Vehicular Technology, 2013, 62(9): 4228-4239. doi: 10.1109/TVT.2013. 2280674.
[13]
LIANG X, ZHAO X, LI S, et al. A non-stationary geometry- based scattering model for street vehicle-to-vehicle wideband MIMO channels[C]. IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), Hong Kong, China, 2015: 2239-2243. doi: 10.1109/PIMRC.2015.7343670.
[14]
ZAJI? A G and STÜBER G L. Three-dimensional modeling and simulation of wideband MIMO mobile-to-mobile channels[J]. IEEE Transactions on Wireless Communications, 2009, 8(3): 1260-1274. doi: 10.1109/TWC.2009.070379.
