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Nonorthogonal multiple access (NOMA) is one of the key technologies for 5G, where the system capacity can be increased by allowing simultaneous transmission of multiple users at the same radio resource. The most of the proportional fairness (PF)–based resource allocation studies for NOMA systems assumes full buffer traffic model, while the traffic in real‐life scenarios is generally nonfull buffer...
Non-orthogonal multiple access (NOMA) is one of the key technologies for 5G, where the system capacity can be increased by allowing simultaneous transmission of multiple users at the same radio resource. In this paper, we propose a genetic algorithm (GA) based multi-user radio resource allocation scheme for NOMA downlink systems. In our set-up, GA is used to determine the user groups to simultaneously...
In this paper, we present a genetic algorithm (GA) based resource allocation technique for indoor optical visible light communication (VLC) networks. Optical VLC network using existing lighting infrastructure in an indoor environment is a cellular network with very small size cells. It is necessary to have effective resource allocation mechanisms for VLC networks to maximize system throughput and...
Non-orthogonal multiple access (NOMA) is an important candidate for 5G radio access technology. In NOMA transmitter, different users' signals are superposed on the same radio resource with different power allocation factors. The receiver removes other users' signals from the received signal before decoding its own signal. In this work, an iterative gradient ascent-based power allocation method is...
As the complexity of networks increases significantly, cognitive networking becomes an essential tool to provide efficient management of the valuable resources. In this paper, a Genetic Algorithm (GA) based cognitive LTE downlink scheduler is proposed to allocate radio resources to the users. In the proposed scheme, a network administrator defines high level network policies by setting the operational...
In this paper, digital implementation of analogue logarithmic amplifiers used to detect the envelope of radar signals are studied for radar analysis systems. RF signals are downconverted to IF band using downconverters. The envelope of IF signal is named Video signal and has significiant information about radar. Analogue logarithmic amplifiers (ALogAmp) are used to detect the envelope of IF signals...
The voice, video, and data traffic can be carried as IP packets over Long Term Evolution (LTE) networks which bring the cellular communication to the fourth generation (4G) era. LTE enables this digital convergence by offering higher capacity, including inherent IP support in its architecture, and supporting multi-user diversity scheduling. However, recent increases in Voice over IP (VoIP) and video...
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