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adaptive wireless communications systems

Performance analysis of adaptive OFDM modulation scheme in VLC vehicular communication network in realistic noise environment

Performance analysis of adaptive OFDM modulation scheme in VLC vehicular communication network in realistic noise environment

... Xavier Fernando is a Professor and Director of Ryerson Communications Lab. He was an IEEE Distinguished Lecturer and delivered over 40 invited lectures worldwide. He has (co-)authored over 150 research articles ...

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Adaptive coupled synchronization among three coupled chaos systems and its application to secure communications

Adaptive coupled synchronization among three coupled chaos systems and its application to secure communications

... proposed method. This paper improves the above method, designs an adaptive controller by using two at- tenuation factor, and adjusts the amplitude significantly. As the change of attenuation factor, the ...

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A New Adaptive EDCA Approach to QoS of Wireless Communications

A New Adaptive EDCA Approach to QoS of Wireless Communications

... 3) Directional antenna-based mechanism, such as D- MAC protocol. It is developed from IEEE 802.11. The protocol requires each node to know the location of the- mselves and their neighbors. Source node first launches a ...

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Wireless Video Communications: Second to Third Generation and Beyond

Wireless Video Communications: Second to Third Generation and Beyond

... burst-by-burst adaptive modems, we now fo- cus our attention on video ...an adaptive rate control and packetisation algorithm, supporting constant Baud-rate ...burst-by-burst adaptive modulation, in ...

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Adaptive Space Time Spreading Assisted Wideband CDMA Systems Communicating over Dispersive Nakagami  Fading Channels

Adaptive Space Time Spreading Assisted Wideband CDMA Systems Communicating over Dispersive Nakagami Fading Channels

... in communications, which include data network and security, intelligent wireless networking, error control coding, modulation and demodulation, spread-spectrum communications and multiuser detection, ...

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Decrease Interference Using Adaptive Modulation and Coding

Decrease Interference Using Adaptive Modulation and Coding

... in wireless communications to denote the matching of the modulation, coding and other signal and protocol parameters to the conditions on the radio ...link. Adaptive modulation systems ...

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Layered Video Transmission on Adaptive OFDM Wireless Systems

Layered Video Transmission on Adaptive OFDM Wireless Systems

... communication systems for cooperative driv- ing; MIUR “WWLAN” project for wideband high-speed wireless LAN; CNIT/ASI (Italian Space Agency) projects “Integration of Multimedia Services on Heterogeneous ...

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Adaptive Multicarrier Modulation: A Convenient Framework for Time Frequency Processing in Wireless Communications

Adaptive Multicarrier Modulation: A Convenient Framework for Time Frequency Processing in Wireless Communications

... employed adaptive subcarrier allocation in order to reduce the Crest ...OFDM systems with increased robustness to nonlinear distortion have been proposed—for example, by Okada et ...

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Adaptive Transmitter Optimization in Multiuser Multiantenna Systems: Theoretical Limits, Effect of Delays, and Performance Enhancements

Adaptive Transmitter Optimization in Multiuser Multiantenna Systems: Theoretical Limits, Effect of Delays, and Performance Enhancements

... the Wireless Infor- mation Network Laboratory ...of wireless data transmission including system modeling and performance, signal processing, and radio resource manage- ment, with emphasis on open access ...

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Adaptive Subchip Multipath Resolving for Wireless Location Systems

Adaptive Subchip Multipath Resolving for Wireless Location Systems

... Broadband Systems Group (2001–2005), Broadcom Corporation, Irvine, ...integrated systems for cable modems, ca- ble modem termination systems, wireless broadband receivers, and DTV ...of ...

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Quadrature Amplitude Modulation: From Basics to Adaptive Trellis Coded, Turbo Equalised and Space Time Coded OFDM, CDMA and MC CDMA Systems

Quadrature Amplitude Modulation: From Basics to Adaptive Trellis Coded, Turbo Equalised and Space Time Coded OFDM, CDMA and MC CDMA Systems

... Although lagging somewhat behind Feher, the Japanese made up for this delay by pub- lishing a very detailed paper describing the development of a 256-level QAM modem in Au- gust 1986. In this paper from Saito and ...

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Multimedia computer networks quality of service techniques evaluation and development

Multimedia computer networks quality of service techniques evaluation and development

... Several studies have used packet scheduling mechanisms to improve network QoS. For instance, Frantti and Jutila (2009) proposed Adaptive Weighted Fair Queuing (AWFQ) to differentiate service for traffic according ...

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Adaptive sparse random projections for wireless sensor networks with energy harvesting constraints

Adaptive sparse random projections for wireless sensor networks with energy harvesting constraints

... better tradeoff between the MSE and the system delay. The optimal sparsity problem is turned into an opti- mal power allocation maximizing throughput with the energy-harvesting constraints. An offline power alloca- tion ...

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Adaptive wireless transmission strategy for maximizing energy efficiency

Adaptive wireless transmission strategy for maximizing energy efficiency

... in wireless transmission system has been continuously increasing to cater for the explosive growth in demand for high-data-rate wireless applica- tions and a wide variety of diverse quality of service (QoS) ...

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Information Systems Security Practices in Social Software Applications: A Systematic Literature Review

Information Systems Security Practices in Social Software Applications: A Systematic Literature Review

... from among the 135 total relevant journals as follows: ACM Transactions on Intelligent Systems and Technology ACM IEEE Wireless Communications IEEEWC IEEE Communications Surveys & Tutori[r] ...

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Performance Analysis of Qo-Stbc for Increasing Transmit Diversity in Rayleigh Fading Environment- A Review

Performance Analysis of Qo-Stbc for Increasing Transmit Diversity in Rayleigh Fading Environment- A Review

... communication systems with high data rates has dramatically increased in recent ...huge communications demand, exploiting the limited resources such as bandwidth and power as efficient as ...MIMO ...

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Health Information Technology Program Health IT Workforce Roles Training Grant Student Selection Procedure

Health Information Technology Program Health IT Workforce Roles Training Grant Student Selection Procedure

... The national Health and Human Services Department, as part of the American Reinvestment and Recovery Act of 2009 (ARRA), provided funds for institutions of higher education to train healthcare and information technology ...

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Cooperative OFDM Underwater Acoustic Communications with Limited Feedback: Part I

Cooperative OFDM Underwater Acoustic Communications with Limited Feedback: Part I

... achieve adaptive communications in wireless ...future wireless communications due to the limited communication resource ...dominant wireless communication issues ...UWA ...

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Robust and adaptive receiver design for wireless communication systems

Robust and adaptive receiver design for wireless communication systems

... LDPC Low-Density Parity Check Code LSM Likelihood Separation vIetric MA M-algorithm MAP Maximum a posteriori probability MF Matched Filter MLSD \llaximum Likelihood Sequence Detection MM[r] ...

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Adaptive modulation schemes for optical wireless communication systems

Adaptive modulation schemes for optical wireless communication systems

... As indicated in Figure 1.1, the transmitter of an optical wireless system usually included a LED or LD which typically operated in a wavelength range from 780 - 950 nm [21]. This was due to the availability of the ...

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