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Communication protocols – for short protocols – Form the basis for the opera-
tion of computer networks and telecommunication systems. They are behavior
conventions which describe how communication systems interact with each other
in computer networks. Protocols define the temporal order of the interactions and
the Formats of the data units exchanged. Communication protocols comprise a
wide range of different functions and mechanisms, such as the sending and receiv-
ing of data units, their coding/decoding, error control mechanisms, timer control,
flow control, and many others.
標(biāo)簽:
Engineering
Protocol
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2020-05-31
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Soon after Samuel Morse’s telegraphing device led to a deployed electri-
cal telecommunications system in 1843, waiting lines began to Form by those
wanting to use the system. At this writing queueing is still a significant factor in
designing and operating communications services, whether they are provided
over the Internet or by other means, such as circuit switched networks.
標(biāo)簽:
Telecommunication
Queueing
Packet
Theory
with
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2020-05-31
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An acronym for Multiple-In, Multiple-Out, MIMO communication sends the same data as several signals
simultaneously through multiple antennas, while still utilizing a single radio channel. This is a Form of
antenna diversity, which uses multiple antennas to improve signal quality and strength of an RF link. The
data is split into multiple data streams at the transmission point and recombined on the receive side by
another MIMO radio configured with the same number of antennas. The receiver is designed to take
into account the slight time difference between receptions of each signal, any additional noise or
interference, and even lost signals.
標(biāo)簽:
Understanding_the_Basics_of_MIMO
上傳時(shí)間:
2020-06-01
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Telecommunications is today widely understood to mean the electrical means of
communicating over a distance. The first Form of telecommunications was that of
the Telegraph, which was invented quite independently in 1837 by two scientists,
Wheatstone and Morse. Telegraphy was on a point-to-point unidirectional basis and
relied on trained operators to interpret between the spoken or written word and the
special signals sent over the telegraph wire. However, the use of telegraphy did
greatly enhance the operations of railways and, of course, the dissemination of news
and personal messages between towns.
標(biāo)簽:
Telecommunications
Understanding
Networks
上傳時(shí)間:
2020-06-01
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The focus of this book is on developing computational algorithms for transmit wave-
Form design in active sensing applications, such as radar, sonar, communications and
medical imaging. WaveForms are designed to achieve certain desired properties, which
are divided into three categories corresponding to the three main parts in the book,
namely good aperiodic correlations, good periodic correlations and beampattern match-
ing.
標(biāo)簽:
WaveForm
Desig
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2020-06-01
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Static electricity is the most ancient Form of electricity known to humans. More
than 2000 years ago, the Greeks recognized the attraction between certain mate-
rials when they were rubbed together; indeed, the word electricity comes from
the Greek elektron, which means amber. During the seventeenth and eighteenth
centuries, several key experiments were conducted to understand and measure
static electricity. But the discovery of electromagnetism and its Formidable break-
through has rapidly outgrown interest in static electricity. Even today, where
the industrial applications of static electricity are not insignificant, they cannot
compare with those of electromagnetism and electrodynamics.
標(biāo)簽:
Understand
Discharge
Electro
Static
上傳時(shí)間:
2020-06-05
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Electricity has been chosen as the most convenient and useful Form of energy, due
to its ease of transportation over large distances and easy conversion to other
energy Forms. The biggest inconvenience with electricity is that it cannot be stored
and must be utilized at the moment of generation. The storage of a large amount of
electrical energy is usually connected with its conversion to other types of energy,
which significantly reduces the efficiency of such processes. The aim of the power
system, often treated as the biggest and the most complex machine ever built, is to
deliver uninterruptible electric energy of demanded quality parameters to
consumers.
標(biāo)簽:
Electromagnetic
Interference
Conducted
上傳時(shí)間:
2020-06-07
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This book deals with a very important problem in power system planning
for countries in which hydrogeneration accounts for the greatest part of the
system power production. During the past thirty years many techniques
have been developed to cope with the long-term operation of hydro reser-
voirs. These techniques have been discussed in a number of publications,
but they have not until now been documented in book Form.
標(biāo)簽:
Long-Term
Operation
Optimal
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2020-06-07
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Plug in Electric Vehicles (PEVs) use energy storages usually in the Form of battery
banks that are designed to be recharged using utility grid power. One category of
PEVs are Electric Vehicles (EVs) without an internal-combustion (IC) engine
where the energy stored in the battery bank is the only source of power to drive the
vehicle. These are also referred as Battery Electric Vehicles (BEVs). The second
category of PEVs, which is more commercialized than the EVs, is the Plug in
標(biāo)簽:
Electric
Vehicles
Grids
Smart
Plug
In
in
上傳時(shí)間:
2020-06-07
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Plug in Electric Vehicles (PEVs) use energy storages usually in the Form of battery
banks that are designed to be recharged using utility grid power. One category of
PEVs are Electric Vehicles (EVs) without an Internal-Combustion (IC) engine
where the energy stored in the battery bank is the only source of power to drive the
vehicle. These are also referred as Battery Electric Vehicles (BEVs). The second
category of PEVs, which is more commercialized than the EVs, is Plug in Hybrid
Electric Vehicles (PHEVs) where the role of the energy storage is to supplement the
power produced by the IC engine.
標(biāo)簽:
Electric
Vehicles
Plug
In
上傳時(shí)間:
2020-06-07
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