Abstract Data collection is a fundamental function provided by wireless sensor networks. How to efficiently collect sensing data from all sensor nodes is critical to the performance of sensor networks. In this paper, we aim to understand the theoretical limits of data collection in a TDMA-based sensor network in terms of possible and achievable maximum capacity. Previously, the study of data collection capacity , , , , , has concentrated on large-scale random networks. However, in most of the practical sensor app ....etc

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http://seminarsprojects.net/Thread-MIMO-Wireless-Channels-Capacity-and-Performance-Prediction--3882 ....etc

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We present a new model for multiple input multiple-output (MIMO) out door wireless fading channels which is more general and realistic than the usual i.i.d. model. We investigate the channel capacity as a function of parameters such as the local scattering radius at the transmitter and the receiver, the distance between the transmit (TX) and receive (RX) arrays, and the antenna beamwidth sand spacing. We point out the existence of pinhole channels which exhibit low fading correlation between antennas but still have poor rank properties and henc ....etc

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Marketing Channels and Supply Chain Management



Learning Goals

Know why companies use distribution channels and understand the functions that these channels perform.
Learn how channel members interact and how they organize to perform the work of the channel.
Know the major channel alternatives that are open to a company.
Comprehend how companies select, motivate, and evaluate channel members.
Understand the nature and importance of marketing logistics and integrated supply c ....etc

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Abstract

Wireless technology has become the most exciting area in telecommunication and networking. The rapid growth of mobile telephone use, various satellite services, and now the wireless Internet are generating tremendous changes in telecommunications and networking. Wireless is convenient and often less expensive to deploy than fixed service, but wireless is not perfect. There are limitations, political and technical difficulties that may ultimately prevent wireless technologies from reaching their full potential. Regardless of t ....etc

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MIMO Wireless Channels

Multiple-input multiple-output (MIMO) communication techniques make use of multi-element antenna arrays at both the TX and the RX side of a radio page link and have been shown theoretically to drastically improve the capacity over more traditional single-input multiple output (SIMO) systems . SIMO channels in wireless networks can provide diversity gain, array gain, and interference canceling gain among other benets.

In addition to these same advantages, MIMO links can offer a multi ....etc

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SPARSE MULTIPATH CHANNELS: MODELING AND ESTIMATION

Waheed U. Bajwa, Akbar Sayeed, and Robert Nowak
Electrical and Computer Engineering, University of Wisconsin-Madison


ABSTRACT
Multipath signal propagation is the defining characteristic of terrestrial
wireless channels. Virtually all existing statistical models for
wireless channels are implicitly based on the assumption of rich
multipath, which can be traced back to the seminal works of Bello
and Kennedy on the wide-sense stationary uncorrelated ....etc

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MIMO RADAR SIGNAL PROCESSING:MIMO as a Distributed Radar System
ABSTRACT:

Multiple-input multiple-output (MIMO) radar has been receiving increasing attention in recent years from researchers, practitioners, and funding agencies. MIMO radar is characterized by using multiple antennas to simultaneously transmit diverse (possibly linearly independent) waveforms and by utilizing multiple antennas to receive the reflected signals. Like MIMO communications, MIMO radar offers a new paradigm for signal processing research. MIMO radar possesses sig ....etc

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MIMO Wireless Channels: Capacity and Performance Prediction

Multiple-input multiple-output (MIMO) communication techniques make use of multi-element antenna arrays at both the TX and the RX side of a radio page link and have been shown theoretically to drastically improve the capacity over more traditional single-input multiple output (SIMO) systems . SIMO channels in wireless networks can provide diversity gain, array gain, and interference canceling gain among other benets. In addition to these same advantages, MIMO links can o ....etc

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