Therefore, for wideband multi-channel cognitive radio systems and transmitters with limited sensing capability, signals are transmitted only over a subset of usable channels.
On the other hand, the procrystal electron densities enable the visualization of sites available for guest molecules and therefore potentially usable channels in porous frameworks.
As is in most communication systems, a fundamental question for cognitive radio system is the channel capacity, i.e., the maximal transmission rate for reliable communications, when there are multiple usable channels (e.g., there are multiple frequency bands in DTV systems).
The ATLAS pixel detector for use at the LHC, CERN, is designed to cover an active sensor area of 1.8 m2 with 1.1×108 read-out channels usable for a particle fluence up to 1015 cm−2 (1 MeV neutron equivalent) and an ionization dose up to 500 kGy of mainly charged hadron radiation.
Mikhail Zadornov, a former finance minister, said in a recent interview with Dozhd, a television channel, that the usable amount could be as low as $200 billion.
If there is more channels on the receiver than the transmitter, only the lowest amount of channels will be usable.
In turn, these products make content more usable by providing new distribution channels.
Come for the hot, young female staff who will pour your domestic pitchers and serve your chicken wings with batted eyelashes in skimpy little outfits, stay for the relentless barrage of HD sports channels over every usable inch of wall space, the patriarchal atmosphere, and, I don't know, 'merica?
He also says that the company is looking at securing the texting channel to make it usable for other purposes, like transactions.
The trade-offs between number of usable optical modes (related to total channel capacity), differential group delay, differential mode attenuation, mode coupling, and the impact on MIMO (multiple-input and multiple-output) receiver complexity are outlined.
