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Small-scale fading describes the rapid fluctuations of the channel envelop due to multipath (interferences between different components of the transmitted signal) and Doppler spectrum. The modeling of these effects is not easy especially in context of mobile wireless ad hoc networks (MWAN). The nodes' mobility in an MWAN induces random and rapid variation of network topology. Consequently, small-scale...
In general the performance of ad hoc networks is limited by mobility, half-duplex operation, and possible collisions. One way to overcome these bottlenecks is to apply a multiuser detection (MUD) reception that can significantly increase the network throughput and improve quality of service. Recent technological advances allow implementation of a multi-user detection receiver in one software-defined...
This paper studies the behavior of a multipath channel for suburban and semi-rural areas in which line of sight (LOS) or near LOS exists between the transmitter and receiver. The objective is to characterize the behavior of a broadband channel for such areas. The amplitudes and delay spread of a multipath model for such an environment are studied, based on a theoretical analysis of scattering from...
In general the performance of ad hoc networks is limited by mobility, half-duplex operation and possible collisions. One way to overcome these bottlenecks is to apply a multi-user detection so that a node can receive several packets from different users at the same time. Enhancing the receiver capacity, defined by the maximum number of received signals from different users, can significantly increase...
As IATA is adopting new boarding media for airplanes, cell phones are considered as the first candidate to replace traditional tickets. This will improve the efficiency of delivery, flight time update and boarding process. This evolution is made possible by displaying two-dimensional barcodes on the mobile device screen. The boarding process involves many steps and participants before one can access...
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