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Then, the right hand side DFT/IDFT matrix and the th diagonal phase shift matrix in the diagonalization can be thought of the precoding to the input information symbol vector in the th sub vector channel, and all the vectorized subchannels become diagonal channels of discrete frequency components from the -point DFT of the original ISI channel ...
The radio channel between an amateur radio repeater and an amateur radio operator uses two frequencies often 600 kHz (0.6 MHz) apart. For example, a repeater that transmits on 146.94 MHz typically listens for a ham transmitting on 146.34 MHz. All of these communication channels share the property that they transfer information.
Carrier Interferometry (CI) is a spread spectrum scheme designed to be used in an Orthogonal Frequency-Division Multiplexing (OFDM) communication system for multiplexing and multiple access, enabling the system to support multiple users at the same time over the same frequency band. Like MC-CDMA, CI-OFDM spreads each data symbol in the ...
Lateral communication is the exchange, imparting or sharing of information, ideas or feelings between people within a community, peer groups, departments or units of an organization who are at or about the same hierarchical level as each other for the purpose of coordinating activities, efforts or fulfilling a common purpose or goal
Bell Laboratories Layer Space-Time (BLAST) is a transceiver architecture for offering spatial multiplexing over multiple-antenna wireless communication systems. Such systems have multiple antennas at both the transmitter and the receiver in an effort to exploit the many different paths between the two in a highly-scattering wireless environment.
Many models of communication include the idea that a sender encodes a message and uses a channel to transmit it to a receiver. Noise may distort the message along the way. The receiver then decodes the message and gives some form of feedback. [1] Models of communication simplify or represent the process of communication.
Channelized in a telecommunications environment means that the line that communications have been transmitted over contains more than one message thread, separated in some fashion. Typical channelization methods include packetizing, frequency-division multiplexing, and time-division multiplexing.
An electronic path between two or more points, capable of providing a single or multiple communication channels. An electronic closed-loop path among two or more points used for signal transfer. In operational terms, a telecommunication circuit may be capable of transmitting information in only one direction ( simplex circuit), or it may be bi ...