spectrum allocation

См. также в других словарях:

• Spectrum management — The spectrum is a conceptual tool used to organize and map the physical phenomena of electromagnetic waves. These waves propagate through space at different frequencies, and the set of all possible frequencies is called the electromagnetic… …   Wikipedia

• Frequency allocation — The electromagnetic spectrum is an aspect of the physical world which, like land, water, and air, is subject to usage limitations. Use of radio frequency bands of the electromagnetic spectrum is regulated by governments in most countries, in a… …   Wikipedia

• Channel allocation schemes — In radio resource management for wireless and cellular network, channel allocation schemes are required to allocate bandwidth and communication channels to base stations, access points and terminal equipment. The objective is to achieve maximum… …   Wikipedia

• Electromagnetic spectrum — The electromagnetic (EM) spectrum is the range of all possible electromagnetic radiation frequencies. [cite web|url=http://imagine.gsfc.nasa.gov/docs/dict ei.html#em spectrum|title=Imagine the Universe! Dictionary] The electromagnetic spectrum… …   Wikipedia

• Military spectrum management — Every military force has a goal to ensure and have permanent access to radio frequencies to meet its vital military tasks. This is based on strategies, doctrines and different policies that military forces adhere to. The nature of high mobility… …   Wikipedia

• Spread spectrum — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

• Radio spectrum pollution — is the straying of waves in the radio and electromagnetic spectrums outside their allocations that cause problems for some activities. It is a specialised form of light pollution, and of particular concern to radio astronomers. See also *… …   Wikipedia

• WiMAX — Worldwide Interoperability for Microwave Access Logo trademarked by the WiMAX Forum …   Wikipedia

• Mobile virtual network operator — A mobile virtual network operator (MVNO) is a company that provides mobile phone services but does not have its own licensed frequency allocation of radio spectrum, nor does it necessarily have all of the infrastructure required to provide mobile …   Wikipedia

• Cognitive radio — A cognitive radio is a kind of two way radio that automatically changes its transmission or reception parameters, in a way where the entire wireless communication network of which it is a node communicates efficiently, while avoiding interference …   Wikipedia

• Frequency — For other uses, see Frequency (disambiguation). Three cyclically flashing lights, from lowest frequency (top) to highest frequency (bottom). f is the frequency in hertz (Hz), meaning the number of cycles per second. T is the period in seconds (s) …   Wikipedia