This paper addresses the planning of UMTS cellular radio networks, for data services when implementing HSDPA, enabling the evaluation of the network performance in different scenarios. An algorithm was developed to allocate carriers, either exclusively for Release’99 or HSDPA, or to be shared between the two, taking multi-service users spatially distributed in a non-uniform way. A simulator was...

In this work the main principles of radio resource sharing with UWB are stated. Specifically different possible network scenarios are considered and the relevant brought advantages are addressed in order to investigate and identify the most flexible network paradigm to exploit the advantages of UWB. Hence a model for the network architecture is proposed which is ad-ho oriented as well as able t...

Abstract— By adding a negative self-feedback to the maximum neural network (MNN), we propose a new parallel algorithm for the broadcast scheduling problem in packet radio networks. The developed algorithm introduces richer and more flexible nonlinear dynamics, and can prevent the network from getting stuck at local minima. The algorithm is verified by simulating 13 different packet radio networks.

non-invasive ultrasound surgeries such as high intensity focused ultrasound have been developed to treat tumors or to stop bleeding. in this technique, incorporation of a suitable imaging modality to monitor and control the treatments is essential so several imaging methods such as x-ray, magnetic resonance imaging and ultrasound imaging have been proposed to monitor the induced thermal lesions...

In this paper we focus on the Round Trip Delay (RTD) time measurement technique which is an easy way to obtain the operating condition information in wireless network (WN). RTD measurement is affected by various parameters of wireless network. We illustrate how these RTD parameters vary (in a telemanagement application) versus distance, baud rates, number of hops, between nodes, using radio mod...

Cognitive Radio (CR) can optimize system objects by dynamically assigning network resource and adjusting network operations in terms of network environments and conditions. So CR technology is very suitable for building emergency communication system to improve resource utilization ratio and enhancing dependability and availability of communication services apparently. In this paper, background...

Wireless Sensor Network (WSN) consists of motes which are equipped with limited battery and requires energy management for enhanced Network Lifetime. In this paper we have adopted a deployment strategy which is performed over a region of interest (ROI) obtained from contour integration of one hop to other. The selection of motes depending on the type of application is also analyzed. The necessi...

In this study, the pricing scheme that will be formed is a model from previous research involving of cloud-radio access network (C-RAN) and fair management models. This combines benefits internet service provider (ISP) quality (QoS) obtained by users, one which factors. The used nonlinear equation solved LINGO 13.0 program to get optimal solution. results show with regard generates maximum reve...

-Radio-over-Fibre (RoF) is an optical communication technique based on the transmission of standard wireless radio signals though optical Fibre in their native format. The optical Fibre provides a huge bandwidth that can support a variety of wireless systems, regardless of their frequency bands, being protocol-transparent which is reflected in great network flexibility. Radio-overFibre techniqu...