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On the Road to Energy Efficient 5G Mobile Networks
The seamless and ubiquitous wireless communication anywhere, anytime, anyhow and between anybody and anything is expected to render daily lives easier. This will continue to grow, increasing at the same time, demand on wireless mobile connectivity between people, machines, processes and so on. There is an opinion that this will ...
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The main drawback of a wireless sensor network is the low power batteries which significantly limit the life expectancy of a network. There is irregular energy consumption in the nodes of the network; as a result the network becomes unable to perform at a certain moment when the electricity runs ...
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Small Antennas for New Wireless Communications Systems
Mobile communication systems have grown tremendously around the world, such as cellular phones, cordless phones, Broadband wireless networks (in small areas), wireless microphones, remote controls, satellite phones, low-cost low power radios (ZigBee and Bluetooth), Ultra Wide Band (UWB) radios etcetera. The communication technology has its challenge in mobile personal communications. ...
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There exist a lot of alternatives to minimize energy consumption of artificial lighting systems. Wireless sensor networks are a prominent technology to monitor a variety of environments and have plenty of applications in the field of lighting control. Conventional photo sensors have a lot of disadvantages mainly because of their ...
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Downlink MAP Decoding for the WiMAX System Identification
In this paper, the authors present an approach that enables the receiver to identify the WiMAX standard among different systems employing the OFDM technique (Orthogonal Frequency Division Multiplexing) consisting of large number of mutually orthogonal sub carriers. This characteristic provides high robustness against multipath effects. The approach is one of ...
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Tool and Mechanisms for Efficient Transfer of Data in Cloud Client-Server Applications
In this paper, the authors focused on the transmission of the data in the client-server applications which communicate via the public internet. The emphasis is placed on minimizing server load and maximizing user comfort when working with a client application. The method presented in the paper enables encapsulating all this ...
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Outage Analysis in Multi-User and Multi-Relay Cognitive AF Relaying Networks Using MRC
In this paper, the authors investigate the outage performance in multi-user and multi-relay cognitive amplify-and-forward relaying networks for MinW relay selection scheme over independent non-identically distributed Rayleigh fading channels, where the eavesdropper node may intercept the source message. To guarantee the quality-of-service of the Primary User (PU), both the maximum ...
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Closed Form Delay/Doppler/Propagation Factor Acquisition for GPS Signals
In this paper, a delay/Doppler/propagation factor acquisition method for Global Positioning System (GPS) signal is proposed. Utilizing the Fast Fourier Transform (FFT) of the Auto-Correlation Function (ACF) for the received signal, together with some mathematical simplifications, a closed form solution is derived to estimate the delay/Doppler/propagation factor for the received ...
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GPS signal Detection Method based on High Order Cyclo-stationarity (DMHOC) is the state-of-the-art method for acquiring the GPS signal under multiplicative and additive noise. However, since the method only uses autocorrelation function to obtain the peak and estimate the received signal frequency, the peak may be buried in the noise ...
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QOSRGA Protocol Using Non-Disjoint Multiple Routes in Mobile Ad Hoc Networks
The problem of Quality of Service (QoS) routing for Mobile Ad-hoc NETwork (MANET) possesses several challenges that must be addressed. To select the most optimal route from source to destination, one has to choose from a set of routes with the corresponding quality of connectivity and resources. A rationale for ...
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