Wireless penetration has witnessed explosive growth over the last two decades. Accordingly, wireless devices Have become much denser per unit area, resulting in an overcrowded usage of wireless resources. To avoid radio interferences and packet collisions, wireless stations Have to exchange control messages to coordinate well. The existing wisdoms of conveying control messages could be classified into three categories: explicit, implicit, or hybrid.
标签： Transmission Attachment Networks Wireless in
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Traditional modulation methods adopted by space agencies for transmit- ting telecommand and telemetry data Have incorporated subcarriers as a sim- ple means of separating different data types as well ensuring no overlap between the radio frequency (RF) carrier and the modulated data’s frequency spectra.
标签： Bandwidth-Efficient Modulation Digital
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The past decades Have witnessed wide demand and applications for wireless commu- nications in the human body area, that is, in the immediate environment around a human body. These demands and applications especially focus on wireless transmis- sion and networking of personal information for user identification, healthcare and medical applications.
标签： communications modeling channel Body area
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The past two decades Have witnessed the introduction and unprecedented growth of cellular mobile telephony and wireless communications. Numerous wireless access technologies Have been introduced in the mobile communications market. While some Have flourished and formed the basis of successful manufacturing and network operator businesses, many Have lived only for a short time and disappeared.
标签： Communications Broadband Wireless Business
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The telecommunications industry has seen a rapid boost within the last decade. New realities and visions of functionalities in various telecommunications networks Have brought forward the concept of next-generation networks (NGNs). The competitions among operators for support- ing various services, lowering of the cost of having mobile and cellular phones and smartphones, increasing demand for general mobility, explosion of digital traffic, and advent of convergence network technologies added more dynamism in the idea of NGNs. In fact, facilitating con- vergence of networks and convergence of various types of services is a significant objective of NGN
标签： Next-Generation Converged Building Networks
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During the past two decades, technological development related to telecommuni- cation technologies has allowed organizations of all types and size to be able to de- velop effective networking applications in support of information management. Fur- thermore, telecommunication technologies combined with computer technology Have created the foundation of modern information technology which has affected all as- pects of societal and organizational functions in our modern world.
标签： Telecommunications Cases on
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Employing multiple transmit and receive antennas, namely using multi-input multi-output (MIMO) systems, has proven to be a major breakthrough in providing reliable wireless communication links. Since their invention in the mid-1990s, transmit diversity, achieved through space-time coding, and spatial multiplexing schemes Have been the focus of much research in the area of wireless communications.
标签： Communication Systems Coding MIMO for
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Today’s wireless services Have come a long way since the roll out of the conventional voice-centric cellular systems. The demand for wireless access in voice and high rate data multi-media applications has been increasing. New generation wireless communication systems are aimed at accommodating this demand through better resource management and improved transmission technologies.
标签： Radio Cognitive Software Defined
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The term economics is generally understood to mean sound management. This is associated with openness, good faith, accurate figures and integrity in company accounts, with transparency ensured through satisfactory standards of good practice in relation to investors and the clients who Have placed their trust in an organization’s managers.
标签： Communication Networks Economy
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Multiple-Input Multiple-Output (MIMO) systems Have recently been the subject of intensive consideration in modem wireless communications as they offer the potential of providing high capacity, thus unleashing a wide range of applications in the wireless domain. The main feature of MIMO systems is the use of space-time processing and Space-Time Codes (STCs). Among a variety of STCs, orthogonal Space-Time Block Codes (STBCs) Have a much simpler decoding method, compared to other STCs
标签： Orthogonal Space-Time Processing Complex
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