A Millimeter-Wave Channel Simulator NYUSIM with Spatial Consistency and Human Blockage

Abstract

Accurate channel modeling and simulation are indispensable for millimeter-wave wideband communication systems that employ electrically-steerable and narrow beam antenna arrays. Three important channel modeling components, spatial consistency, human blockage, and outdoor-to-indoor penetration loss, were proposed in the 3rd Generation Partnership Project Release 14 for mmWave communication system design. This paper presents NYUSIM 2.0, an improved channel simulator which can simulate spatially consistent channel realizations based on the existing drop-based channel simulator NYUSIM 1.6.1. A geometry-based approach using multiple reflection surfaces is proposed to generate spatially correlated and time-variant channel coefficients. Using results from 73 GHz pedestrian measurements for human blockage, a four-state Markov model has been implemented in NYUSIM to simulate dynamic human blockage shadowing loss. To model the excess path loss due to penetration into buildings, a parabolic model for outdoorto-indoor penetration loss has been adopted from the 5G Channel Modeling special interest group and implemented in NYUSIM 2.0. This paper demonstrates how these new modeling capabilities reproduce realistic data when implemented in Monte Carlo fashion using NYUSIM 2.0, making it a valuable measurement-based channel simulator for fifth-generation and beyond mmWave communication system design and evaluation.

Stochastic Learning Robust Beamforming for Millimeter-Wave Systems With Path Blockage

“…, U } denote the BS and downlink user indices, respectively, with B and U denoting the total number of BSs and downlink users. It has been shown [11], [15], [18], [19] that unpredictable blockages occur with 20%-60% probability, leading to significant loss in the achievable throughput. In order to abstract such non-ideal effects, we consider a probabilistic model [15], [16], in which each path undergoes random and independent blockage, whose frequency of occurrence can however be obtained as side-information for the system optimization, as shown in [13].…”

A Comprehensive Study on Simulation Techniques for 5G Networks: State of the Art Results, Analysis, and Future Challenges

“…These results are available for public use and suitable in 3GPP and other standard bodies and academic/industrial simulations. In this framework, in [37], an extended NYUSIM channel model with spatial consistency, human blockage and outdoor-to-indoor (O2I) penetration loss was developed. The multiple reflection surfaces method was adopted to update small-scale parameters in the spatial consistency procedure.…”

Yüksek Hızlı Trenler için 5G Milimetre Dalga Haberleşmesi

“…Moreover, the NYUSIM can simulate spatially consistent channel realisations (Ju et al, 2019). Spatial consistency indicates continuous and realistic channel evolution along a trajectory in a local area unlike drop based channel models in which a static and independent channel impulse response (CIR) at a particular BS-MS separation distance is generated (i.e., there is no correlation among different channel realisations) (Ju et al, 2019). NYUSIM with spatial MS Direction of movement BS consistency simulates spatially correlated CIRs when a train moves in a local area (track).…”