Transmitting a training sequence consumes bandwidth that could otherwise be used for transmission of information, however, and training sequences must be transmitted at regular intervals when the channel is time varying.
Geostationary satellites, first sent up in 1966, are situated over the Equator at altitudes of about 35,000 kilometres and transmit data at regular intervals.
The distributed opportunistic multiChannel MAC (OMC-MAC) proposal in [64] assumes a fixed CCC, transmits beacons at regular intervals for synchronization, and divides the beacon interval into three phases: channel sensing, contention, and data transmission.
Smart meters collect data at regular intervals and transmit it, usually via radio, to a central location.
Single leaf gas exchange properties (CO2 assimilation rate and stomatal conductance) and optical properties, direct and diffuse radiation incident on the canopy, and photosynthetically active radiation (PAR) reflected and transmitted by the canopy were measured at regular intervals throughout the growing season.
Master databases were backed up at regular intervals and copies transmitted by electronic mail to the MRC Clinical Trials Unit in London on a monthly basis.
"Tremolo involved an oscillation of the electronic signal," Waksman writes, "transmitted from the guitar to the amplifier so that the volume level would fluctuate at regular intervals between extreme loudness and virtual silence".
However, data should be sent at regular intervals, with the exception of event monitoring where data is transmitted only if an event has been positively identified.
Repeat at regular intervals.
// synapses at regular intervals.
