Path lossis the ratio of received power to the transmitted power for a given propagation path and is a function of propagation distance. Free-space is thesimplest propagation model for path loss. In this model there is a direct-path signal component between the transmitter and the receiver, wi...
It can be shown that for any antenna the effective area is related to the directivity g(θ,ϕ) in the direction of the arriving wave through the formula Ae = (λ2/4π)g. Isotropic antennas, for which g = 1, have an effective area Ae = 0.08λ2. For communication between two ...
Joint Impact of Pathloss Shadowing and Fast Fading - An Outage Formula for Wireless Networks In this paper, we analyse the joint impact of pathloss, shadowing and fast fading on wireless networks. Taking into account the pathloss and the shadowing,... JM Kelif,M Coupechoux - 《Computer Sci...
This study focuses on developing an indoor empirical path loss prediction model for 802.11n network at 2.4 GHz. As 802.11n features Multiple-Input Multiple-Output (MIMO) which is not present in any previous wireless local area network (WLAN) standards, it is considered imperative to figure out ...
ultra wideband communicationwireless channelsUWBchannel measurement systemchannel transfer functionsfrequency sweep methodlog-distance path loss formulaoffice environmentspropagation environmentsThis paper reports the empirical path loss model of ultra wide band (UWB) communications in office environments. The ...
in overwater environment,and use s the least square method to fit the two-ray model and finally determine the em pirical formula.The result shows that the corrected empirical formula conforms m ore with the signal propagation path loss characteristics in the actual environm ent,which provides ...
Correction to "Channel Model for the Surface Ducts: Large-Scale Path-Loss, Delay Spread, and AOA" In the above paper, there is a minor sign mistake that affects the derivation of the ray tracing algorithm and trapping beam-width formula. In this errata,... E Dinc,Ozgur B. Akan - 《...
If exposed to oxygen or air, the plasma arc or a spark from any source can ignite this trapped hydrogen gas, causing an explosion that may result in death, personal injury, loss of property, or equipment damage. Consult with the table manufacturer and other experts prior to cutting aluminum...
Performance metrics measured through cross-layering method among others include throughput, delay, congestion rate, transmission rate and packet loss rate. Finally, cross-layering is also used for stability mechanism purposes in ad hoc networks such as energy conservation, QOS, congestion avoidance and ...
Kim, et al.; “Transform-free analysis of the GI/G/1/K queue through the decomposed Little's formula;” Computers and Operations Research; vol. 30, No. 3; Mar. 2003; pp. 1-20. Kim, et al.; “Modeling Network Coded TCP Throughput: A Simple Model and its Validation”, arXiv:100...