The current methods of communications are becoming less relevant under today’s growing demand for and reliance on constant connectivity. Of decreasing relevance are the models of a single radio to perform a single task. The expansion of wireless access points among coffee shops, airports, malls, and other public arenas is opening up opportunities for new services and APPlications.
上傳時間： 2020-05-26
上傳用戶：shancjb
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.
標簽： communications modeling channel Body area
上傳時間： 2020-05-26
上傳用戶：shancjb
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.
標簽： Telecommunications Cases on
上傳時間： 2020-05-26
上傳用戶：shancjb
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.
標簽： Radio Cognitive Software Defined
上傳時間： 2020-05-26
上傳用戶：shancjb
Cognitive radio has emerged as a promising technology for maximizing the utiliza- tion of the limited radio bandwidth while accommodating the increasing amount of services and APPlications in wireless networks. A cognitive radio (CR) transceiver is able to adapt to the dynamic radio environment and the network parameters to maximize the utilization of the limited radio resources while providing flexibility in wireless access. The key features of a CR transceiver are awareness of the radio envi- ronment (in terms of spectrum usage, power spectral density of transmitted/received signals, wireless protocol signaling) and intelligence.
標簽： Cognitive Wireless Network
上傳時間： 2020-05-26
上傳用戶：shancjb
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
標簽： Orthogonal Space-Time Processing Complex
上傳時間： 2020-05-26
上傳用戶：shancjb
How will future generations refer to our times? Will it be known as one of space exploration, genetics, atomic energy or computing? Possibly, but I think it is more likely to be ‘The age of communications’. Not since printed books and newspapers were first introduced has there been such an explosion of communication. None of this technology could function without modern cables and, just as important, competent installers.
標簽： APPlications Cabling Copper
上傳時間： 2020-05-27
上傳用戶：shancjb
With the advancement of technology and miniaturization of electronic devices, APPlications of wireless sensor networks (WSNs) can be seen in diverse areas in our lives. In fact, these WSNs have gained a lot of attention from both the research community and industry, making them easily available on the market. An extensive amount of research, easy availability, and cheap cost make them useful in various types of futuristic APPlications as well.
標簽： Communication Technologies Emerging
上傳時間： 2020-05-27
上傳用戶：shancjb
Wireless Fidelity (Wi-Fi) networks have become mainstream over the last few years. What started out as cable replacement for static desktops in indoor networks has been extended to fully mobile broadband APPlications involving moving vehicles, high-speed trains, and even airplanes.
標簽： Technologies Emerging Wireless Theory LANs in
上傳時間： 2020-05-27
上傳用戶：shancjb
Wirelessmeshnetworkingisahotandgrowingtopic,stillinitsinfancyin some ways, whilst already shown to be capable in others. From a military beginning, mesh networks moved to civilian use and are now being deployed worldwide as both local area networks (LANs) and metro- politan area networks (MANs). However, these deployments are still ‘leading edge’ and it is not yet clear what the most enduring APPlications of mesh will be – particularly as the market moves from early adopters towards widespread take up.
標簽： Essentials Networking Wireless Mesh of
上傳時間： 2020-05-27
上傳用戶：shancjb
