Information rate that can be transmitted over a given bandwidth
Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. It is a measure of how efficiently a limited frequency spectrum is utilized by the physical layer protocol, and sometimes by the medium access control (the channel access protocol).[1]
^Guowang Miao, Jens Zander, Ki Won Sung, and Ben Slimane, Fundamentals of Mobile Data Networks, Cambridge University Press, ISBN 1107143217, 2016.
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Spectralefficiency, spectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific...
Spectral sensitivity is the relative efficiency of detection, of light or other signal, as a function of the frequency or wavelength of the signal. In...
CDMA spectralefficiency refers to the system spectralefficiency in bit/s/Hz/site or Erlang/MHz/site that can be achieved in a certain CDMA based wireless...
noise Least-squares spectral analysis Noise spectral density Spectral density estimation SpectralefficiencySpectral leakage Spectral power distribution...
limited by the spectral sensitivity functions of the visual opsins. The range is defined psychometrically by the luminous efficiency function, which...
shared spectrum efficiency (FSSE) can be used as a combined measure of fairness and system spectrum efficiency. The system spectralefficiency is the aggregate...
Multiple Output) and beamforming for better signal quality and improved spectralefficiency. In November 2008, the International Telecommunication Union-Radio...
telecommunication systems, such as in 802.11 Wi-Fi standards. Arbitrarily high spectralefficiencies can be achieved with QAM by setting a suitable constellation size...
different times. In theory, CDMA, TDMA and FDMA have exactly the same spectralefficiency but practically, each has its own challenges – power control in the...
The term quantum efficiency (QE) may apply to incident photon to converted electron (IPCE) ratio of a photosensitive device, or it may refer to the TMR...
data using a minimum of radio spectrum bandwidth. It has higher spectralefficiency and more resistance to fading than AM or FM. In OFDM, multiple radio...
capacity. Efficient dynamic RRM schemes may increase the system spectralefficiency by an order of magnitude, which often is considerably more than what...
because the phase continuity yields high spectralefficiency, and the constant envelope yields excellent power efficiency. The primary drawback is the high implementation...
the radiant flux received by that surface. The spectral hemispherical reflectance in frequency and spectral hemispherical reflectance in wavelength of a...
benefits of less user intervention to operate the radio and greater spectralefficiency with large numbers of users. Instead of assigning a radio channel...
communication systems can choose a trade off between a simpler filter and spectralefficiency. This gives an output pulse shaped like a Gaussian function. Nyquist...
and collision avoidance are essential for network reliability and spectralefficiency. Previously, LoRaWAN has relied upon ALOHA as the medium access control...
open standard deposited at ETSI. DAB can give substantially higher spectralefficiency, measured in programmes per MHz and per transmitter site, than analogue...
include: quality of service targets, traffic capacity and cell size, spectralefficiency and sectorization, traffic capacity versus coverage, and channel...
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