by U.S. Dept. of Commerce, National Telecommunications and Information Administration, For sale by the National Technical Information Service in Boulder, Colo, Springfield, VA .
Written in English
|Other titles||Model of millimeter wave propogation for personal communication networks in urban settings|
|Statement||Kenneth C. Allen|
|Series||NTIA report -- 91-275, NTIA report -- 91-275|
|Contributions||United States. National Telecommunications and Information Administration|
|The Physical Object|
munication, massive multiple-input multiple-output (MIMO), and millimeter wave (mmWave) are the key ingredients contributing to the capacity increase of 5G . It can be observed that the current cellular network mainly operates in frequency bands below 3 GHz, and the total licensed spectrum used today is approximately 1 GHz. Half way between deterministic propagation models and statistical channel models are Geometric-Stochastic Channel Models (GSCM) already proposed for radio channel simulation at lower frequencies and standardised at the international level -.File Size: 1MB. The characteristics of millimeter wave propagation and the effects of various factors on propagation are presented. Transmission losses occur when millimeter wave traveling through the atmosphere. Abstract: The use of extremely high frequency (EHF) or millimeter-wave (mmWave) band has attracted significant attention for the next generation wireless access networks. As demonstrated by recent measurements, mmWave frequencies render themselves quite sensitive to “blocking” caused by obstacles like foliage, humans, vehicles, by:
networks . 2. RADIO PROPAGATION MODEL A radio propagation model is an empirical mathematical formulation for the characterization of radio wave propagation as a function of frequency, distance and other characteristics. A single model is usually developed to predict the behavior of propagation for every similar link under similar Size: KB. Overview of Millimeter Wave Communications for Fifth-Generation (5G) Wireless Networks—With a Focus on Propagation Models Abstract: This paper provides an overview of the features of fifth generation (5G) wireless communication systems now being developed for use in the millimeter wave (mmWave) frequency by: Propagation Model 1. Microwaves UCL 1 Propagation models for wireless mobile communications D. Vanhoenacker-Janvier, Microwave Lab. UCL, Louvain-la-Neuve, Belgium AT1-Propagation in wired, wireless and optical communications 2. A model of millimeter-wave propagation for personal communication networks in urban settings. [K C Allen; United States. National Telecommunications and Information Administration.].
The main reason for the absence of a rich multipath propagation is because the millimeter wave wireless channel requires high-gain directive antennas that compensate for the path loss. Wireless Communications and Networks. ©. New spectrum below 6 GHz (e.g. GHz CBRS) Much larger channel bandwidth in “mm-wave” range (6 – GHz) for Enhanced Mobile Broadband FCC notice of proposed rulemaking (NPRM): 28, 37, 39, 64 – 71 GHz Proposed frequency bands for WR from regional groups: 28 GHz LMDS spectrum first candidate Size: 4MB. The CI model with a 1 m close-in reference distance (7) was ﬁt to the simulated 3GPP model sample points generated from random distances and normal (in dB) shadow fading sample values using (1)–(3) (frequencies above GHz reverted to a single slope model and ignored the second slope portion of (1)). deploying wireless communication networks. Path loss depends on the number of factors such as the radio frequency used and the nature of the terrain. The free space propagation model is the simplest path loss model in which there is a direct-path signal between the transmitter and the receiver with no atmosphere.