In some systems, two or three secondaries are distributed around a single primary station, and two or three families of hyperbolas are printed on the appropriate chart.
The primary network consists of a primary base station (BS) that transmits signals to a single PU.
The primary network consists of a primary base station (BS) and M PUs with known locations, denoted as {PU 1, PU 2,⋯, PU M }.
In the cover region of a primary base station (P_BS), the SU_Rs cooperate with one another to detect the idle spectrum.
Consider an underlay multi-hop CRANET coexisting with a cellular primary network as depicted in Fig. 1, wherein PUs can send their data traffic to a primary base station (PBS) via the licensed uplink channels.
This is the high efficiency and industrial production design of a DSC panel, a primary power station with 500 W was installed on our roof for charging the battery.
First, a primary base station (PBS) determines the interference limits that can be accepted at each PU receiver based on its target performance, such as predefined signal to interference plus noise ratio (SINR), system outage probability, and so on.
U.C.F. will invest up to $1 million in the college station, which had been the market's secondary PBS station (and already offered some U.C.F. programming on a digital subchannel) and will now become the primary station, pending PBS approval.
Prior to the 1994 season, WDAF was the primary station for the Chiefs as an NBC affiliate (they aired on KMBC when ABC had the AFL package through 1964), since NBC had the AFC package.
This arrangement provides a remarkably accurate and reliable system covering a range of 100 300 miles (160 480 km) from the primary station.
