نتایج جستجو برای: transmission delay

تعداد نتایج: 367184  

Journal: :IEICE Transactions 2005
Satoshi Takahashi Chang-Jun Ahn Hiroshi Harada Yukiyoshi Kamio

MIMO (multiple-input multiple-output) transmission is a promising technology to improve the frequency usage efficiency in mobile radio communications. In this letter, MIMO transmission with eigenbeam space division multiplexing (E-SDM) is focused on and the site-dependent beamforming characteristics is examined to know the transmission characteristics. Site-dependent radiowave direction of arri...

2005
Salah A. Aly Hani Abu-Salem

SNMPv3, a simple network management protocol, is secure in unicasting communications (i.e., point-to-point or end-to-end transmission). Furthermore, a manager and an agent can authenticate and exchange secure transmission between each other with no time delay or replay. In this paper, we extend the SNMPv3 unicasting security solution to be applicable in multicasting applications. In addition, w...

Journal: :Mathematical biosciences 2010
Guihong Fan Junli Liu P van den Driessche Jianhong Wu Huaiping Zhu

We formulate and analyze a delay differential equation model for the transmission of West Nile virus between vector mosquitoes and avian hosts that incorporates maturation delay for mosquitoes. The maturation time from eggs to adult mosquitoes is sensitive to weather conditions, in particular the temperature, and the model allows us to investigate the impact of this maturation time on transmiss...

Journal: :Int. J. Systems Science 2008
Ye Yang Yongji Wang Shuang-Hua Yang

This paper discusses the compensation of the transmission delay in a networked control system (NCS) with a state feedback, which possesses a randomly varying transmission delay and uncertain process parameters. The compensation is implemented by using a buffer in the actuator node and a state estimator in the controller node. A Linear Matrix Inequality (LMI) based sufficient condition for the s...

2005
Ye Yang Yongji Wang Shuang-Hua Yang

This paper discusses the compensation of the transmission delay in a networked state feedback control system (NCS), which possess a randomly varying transmission delay and uncertain process parameters. The compensation is implemented by using a buffer in the actuator node and a state estimator in the controller node. A Linear Matrix Inequality (LMI) based sufficient condition for the stability ...

2004
S. A. Hanna

Interleaving enhances the quality of digital transmission over the radio fading channel. This enhancement comes at the cost of introducing additional time-delay, memory space requirements, and system complexity. This paper describes commonly used interleaving techniques. It addresses the realization and performance of a convolutional interleaver that cuts down time-delay and memory space increa...

2008
Hui-Ming Wei Xue-Zhi Li Maia Martcheva

This paper considers an epidemic model of a vector-borne disease which has direct mode of transmission in addition to the vector-mediated transmission. The incidence term is assumed to be of the bilinear mass-action form. We include both a baseline ODE version of the model, and, a differential-delay model with a discrete time delay. The ODE model shows that the dynamics is completely determined...

Journal: :Journal of applied physiology 2014
Lilian Lacourpaille François Hug Arnaud Guével Yann Péréon Armelle Magot Jean-Yves Hogrel Antoine Nordez

The decrease in muscle strength in patients with Duchenne muscular dystrophy (DMD) is mainly explained by a decrease in the number of active contractile elements. Nevertheless, it is possible that other electrochemical and force transmission processes may contribute. The present study aimed to quantify the effect of DMD on the relative contribution of electrochemical and force transmission comp...

Journal: :Int. J. Communication Systems 2007
Antonios G. Alexiou Dimitrios Antonellis Christos Bouras

This paper proposes a mechanism for the congestion control for video transmission over universal mobile telecommunications system (UMTS). Our scheme is applied when the mobile user experiences real-time multimedia content and adopts the theory of a widely accepted rate control method in wired networks, namely equation-based rate control. In this approach, the transmission rate of the multimedia...

Journal: :IJSNet 2006
Shih-Chang Huang Rong-Hong Jan Wuu Yang

We propose a novel data collection architecture, called Ring-based Information Collection Architecture (RICA), for sensor networks. In the RICA scheme, sensors are organised into a ring. According to our study, the transmission delay time of data collection in a ring is only a half of that in PEGASIS, in which sensors are organised into a chain. We present a ring construction algorithm for RICA...

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