نتایج جستجو برای: carrier communication
تعداد نتایج: 413008 فیلتر نتایج به سال:
Characterized by extensive coverage, easy connection and huge application potential, power line carrier communication has gained increasing attention and become a research hotspot in recent years. This paper started by an introduction of the power line carrier communication technology, and then compared it with other networking methods, finally practical power line networking project was propos...
-Wireless communication systems are tending towards progressive data transfer over a long range of transmission. With the raise in required quality of services, the allocation of the available resource is to be maintained efficiently. A load matrix approach for multi cellular architecture is proposed, which allocate the communication power based on channel estimated SINR. The allocation of powe...
This paper presents an enhanced version of the recently-proposed blind anchored interference-mitigating detector (BAID) for code-division multiple-access transmission. Such a detector, named extended complex BAID (EC-BAID), features invariance to a phase error on the useful channel’s carrier and reveals resistant to a large frequency shift (e.g., Doppler shift) on interfering carriers. The EC-B...
This paper reviews the physical fundamentals and engineering implementations for efficient information exchange via wireless communication using physical waves as the carrier among nodes in an underwater sensor network. The physical waves under discussion include sound, radio, and light. We first present the fundamental physics of different waves; then we discuss and compare the pros and cons f...
Seminal results for the theory of low-frequency microwave quantum communication, as well its practical implementation, are presented: Unconditional security backscatter communication is found by hiding carrier in environment.
MC-CDMA provides the muti carrier adaptive communication model is defined in real time scenario. This communication model is applied to provide optimized communication under different channel impurities. In this work, a robust model is presented under different modulation methods and in fading channel. The analysis of work shows that the proposed QAM integrated model has provided the effective ...
Resource allocation approaches play a very important role in improving the performance of a communication system. Load matrix (LM) [3] is a resource allocation approach used in single carrier mobile communication systems in a multi-cell scenario to reduce the interference (both inter-cell and intra –cell) to increase the system throughput decrease the packet delay. In this paper a resource allo...
This paper is on multi-carrier wireless communication system, focusing on the physical layer in such modulation system. Multi-Carrier MC system has received much attention in modern communication technology and is finding attractive applications. The paper introduces and discusses the discrete cosine transform DCT-based MC. Similarities and differences with respect to the Fourier transform-base...
For effective use of frequency band, carrier superposing (common band) technique has been introduced to satellite communication systems. Meanwhile the satellite’s Traveling Wave Tube Amplifier (TWTA) is preferred to be operated near saturation level for power efficiency. However nonlinearity characteristics of TWTA around that level become the cause of interference for carrier superposing syste...
Communication system recognition can be used in some civilian and military applications. The recognition of the system is done by inspecting the received signal properties like modulation type, carrier frequency, baud rate and so on. Therefore we need Automatic Modulation Recognition (AMR) in addition to carrier and baud rate estimation methods. In this paper we introduce a new AMR method based...
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