نتایج جستجو برای: radio system
تعداد نتایج: 2305280 فیلتر نتایج به سال:
Wireless communications has been plagued by our inability to fully understand how radio waves behave in complicated channels. In the past, anti-fading and anti-multipath techniques such as diversity and equalization have been used to combat the random small-scale fluctuations induced by radio channels, and propagation models were developed to help the communication engineer design radio links i...
A real SDR/JTRS (Software Defined Radio / Joint Tactical Radio System) transceiver can be linked to any public or private radio system. The transceiver baseband processor must adapt to the actual radio channel coding and shall manage ISI, mobility, synchronization, and different interferers. Current baseband solutions are unable to fulfil these requirements because of limited flexibility. A ful...
Abstract This study aimed to modify the biological response of cells to ionizing radiation by combination therapy using radio-sensitizer agent and anticancer drug. Super paramagnetic iron oxide nanoparticles (SPIONs) were prepared and used with gemcitabine (Gem). These two agents were encapsulated simultaneously into poly (D, L-lactic-co-glycolic acid) (PLGA) to form multifunc...
abstract purpose of this paper: this paper presents an analysis toward understanding the business value components that a health care organization can drive by adopting rfid technology into its system. this researcher proposes a framework for evaluating the business value of rfid technology. to do so, emphasis is put on delivering business value through refining business processes and expanding...
The rapidly increasing traffic demand from mobile users forces network operators and service providers to extend and optimize existing networks as well as to plan entirely new mobile radio networks. Current planning methods rely on static coverage prediction. The optimization is partly based on measurements and gathered experiences in connection with empirical methods. However, these methods do...
Our project implements a software-defined radio (SDR) in a Nios® II processor. A software-defined radio is a radio that provides software control of a variety of modulation and demodulation techniques, wide-band or narrow-band operation, communications security functions (such as hopping), and waveform requirements of current and evolving standards over a broad frequency range. In this project,...
Radio resource management is one of the key ways for providing quality-of-service (QoS) to users in wireless networks. In this paper, we propose a utility-based radio resource management scheme for mobile multimedia DS-CDMA systems. The algorithm is aiming at the maximization of the system overall utilities. In order to reduce the computational complexity, the radio resource management is decom...
The past researches shows GMSK (Gaussian minimum shift keying) & OFDM (Orthogonal frequency division multiplexing) are the most effective techniques in the area of wireless communication. There have been many platforms to analyze the working and performance of GMSK & OFDM. In this paper, the experiment is performed on the SDR (software defined radio) which is more flexible radio system as compa...
This study is a design science research which describes the design of a radio frequency identification (RFID) based Healthcare Management System (RHMS) for the healthcare industry. In this study, a prototype RHMS has been designed and developed. The evaluations results validate the practical viability of the proposed architecture. We have described an Information System Design Theory for the RH...
– Over the last decade the world of wireless communications has been undergoing some crucial changes, which have brought it at the forefront of international research and development interest, eventually resulting in the advent of a multitude of innovative technologies and associated products such as WiFi, WiMax, 802.20, 802.22, wireless mesh networks and software defined radio. Such a disparat...
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