scholarly journals Millimeter-Wave Directional Path Loss Models in the 26 GHz, 32 GHz, and 39 GHz Bands for Small Cell 5G Cellular System

2018 ◽  
Author(s):  
M. Khalily ◽  
M. Ghoraishi ◽  
S. Taheri ◽  
S. Payami ◽  
R. Tafazolli
Keyword(s):  
Millimeter Wave ◽  
Path Loss ◽  
Small Cell ◽  
Cellular System ◽  
Loss Models

Radio propagation path loss models for 5G cellular networks in the 28 GHZ and 38 GHZ millimeter-wave bands

2014 ◽  
Vol 52 (9) ◽  
pp. 78-86 ◽  
Author(s):  
Ahmed Iyanda Sulyman ◽  
Almuthanna T. Nassar ◽  
Mathew K. Samimi ◽  
George R. Maccartney ◽  
Theodore S. Rappaport ◽  
...  
Keyword(s):  
Cellular Networks ◽  
Millimeter Wave ◽  
Path Loss ◽  
Radio Propagation ◽  
Propagation Path ◽  
Loss Models

scholarly journals Directional Radio Propagation Path Loss Models for Millimeter-Wave Wireless Networks in the 28-, 60-, and 73-GHz Bands

2016 ◽  
Vol 15 (10) ◽  
pp. 6939-6947 ◽  
Author(s):  
Ahmed Iyanda Sulyman ◽  
Abdulmalik Alwarafy ◽  
George R. MacCartney ◽  
Theodore S. Rappaport ◽  
Abdulhameed Alsanie
Keyword(s):  
Wireless Networks ◽  
Millimeter Wave ◽  
Path Loss ◽  
Radio Propagation ◽  
Propagation Path ◽  
Loss Models

scholarly journals Path Loss Model for Outdoor Parking Environments at 28 GHz and 38 GHz for 5G Wireless Networks

Symmetry ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 672 ◽  
Author(s):  
Ahmed Al-Samman ◽  
Tharek Rahman ◽  
MHD Hindia ◽  
Abdusalama Daho ◽  
Effariza Hanafi
Keyword(s):  
Wireless Networks ◽  
Wireless Network ◽  
Millimeter Wave ◽  
Path Loss ◽  
Loss Model ◽  
Frequency Bands ◽  
Path Loss Model ◽  
Parking Lot ◽  
Loss Models ◽  
5G Systems

It has been widely speculated that the performance of the next generation Internet of Things (IoT) based wireless network should meet a transmission speed on the order of 1000 times more than current wireless networks; energy consumption on the order of 10 times less and access delay of less than 1 ns that will be provided by future 5G systems. To increase the current mobile broadband capacity in future 5G systems, the millimeter wave (mmWave) band will be used with huge amounts of bandwidth available in this band. Hence, to support this wider bandwith at the mmWave band, new radio access technology (RAT) should be provided for 5G systems. The new RAT with symmetry design for downlink and uplink should support different scenarios such as device to device (D2D) and multi-hop communications. This paper presents the path loss models in parking lot environment which represents the multi-end users for future 5G applications. To completely assess the typical performance of 5G wireless network systems across these different frequency bands, it is necessary to develop path loss (PL) models across these wide frequency ranges. The short wavelength of the highest frequency bands provides many scatterings from different objects. Cars and other objects are some examples of scatterings, which represent a critical issue at millimeter-wave bands. This paper presents the large-scale propagation characteristics for millimeter-wave in a parking lot environment. A new physical-based path loss model for parking lots is proposed. The path loss was investigated based on different models. The measurement was conducted at 28 GHz and 38 GHz frequencies for different scenarios. Results showed that the path loss exponent values were approximately identical at 28 GHz and 38 GHz for different scenarios of parking lots. It was found that the proposed compensation factor varied between 10.6 dB and 23.1 dB and between 13.1 and 19.1 in 28 GHz and 38 GHz, respectively. The proposed path loss models showed that more compensation factors are required for more scattering objects, especially at 28 GHz.

scholarly journals Millimeter-Wave Omnidirectional Path Loss Data for Small Cell 5G Channel Modeling

IEEE Access ◽  
2015 ◽  
Vol 3 ◽  
pp. 1573-1580 ◽  
Author(s):  
George R. Maccartney ◽  
Theodore S. Rappaport ◽  
Mathew K. Samimi ◽  
Shu Sun
Keyword(s):  
Millimeter Wave ◽  
Path Loss ◽  
Channel Modeling ◽  
Small Cell ◽  
Loss Data

scholarly journals Probabilistic Omnidirectional Path Loss Models for Millimeter-Wave Outdoor Communications

2015 ◽  
Vol 4 (4) ◽  
pp. 357-360 ◽  
Author(s):  
Mathew K. Samimi ◽  
Theodore S. Rappaport ◽  
George R. MacCartney
Keyword(s):  
Millimeter Wave ◽  
Path Loss ◽  
Loss Models

scholarly journals Optimizing Power by Combining Small Cells with a Massive MIMO for Maximum Energy Efficiency under Two Path Loss Models

2019 ◽  
Author(s):  
Ch. Aravind Kumar
Keyword(s):  
Energy Efficiency ◽  
Massive Mimo ◽  
Path Loss ◽  
Base Station ◽  
Design Criterion ◽  
Small Cell ◽  
Small Cells ◽  
Total Power ◽  
Efficient System ◽  
Loss Models

Currently, we are proceeding towards the 5th generationof wireless networks. The 5G is expected to utilize verywide bandwidth and would have the greater capacity comparedto 4G. Therefore, the energy efficiency is one of the prominentroles in the design criterion. To achieve the maximum energyefficiency, the typical approaches are to increase the throughputor to decrease the power consumption. Recently, the approachto combine the small cell access points to Massive MIMO hasbeen proved as one efficient way to achieve the maximum energyefficiency. In this work, the approach to combine two typeof network, namely Small Cell Access Point (SCA) and BaseStation (BS) with Massive MIMO, is considered for designing anenergy efficient system. We investigate further this approach byextending the simulation to cover both 3GPP LTE as well as IMT2020 environment with two different carrier frequencies underthree scenarios. The performance is measured and comparedwith the existing work in terms of total power consumptionper subcarrier of both the Base Station (BS) and Small CellAccess Points (SCAs). It is apparent that our proposed methodprovides the higher information rate at the same total powerper sub carrier than the existing work. Additionally, generalspeaking, the 3GPP path loss model provides the lower totalpower consumption per sub carrier at BS than IMT-2020, whileboth path loss models almost has no impact on total powerconsumption at SCAs, regardless of carrier frequency and thenumber of antennas adopted in Massive MIMO at BS.

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