A technique which maximizes the capacity of a telecommunications satellite through the use of spatially-isolated beam antennas andlor the use of dual polarities.
The utilization of frequency (channels) more than once in a wireless network; equated primarily with the basic cellular grid design, where each cell uses each channel once within its boundaries and is insulated from other cells using that frequency to allow for anticipated interference; due to the shortcomings of conventional transmission techniques, frequency reuse in adjacent cells has been largely implausible until the recent development of spatial processing technology, which can enable same-cell frequency reuse.
The ability to use the same frequencies repeatedly across a cellular system. As each cell uses radio frequencies only within its boundaries, the same frequencies can be reused in other cells not far away with a limited possibility of interference. The reuse of frequencies is the key concept that enables a cellular system to handle a large amount of calls with a limited number of channels.
The ability of specific channels assigned to a single zone to be used again in another zone, when there is enough distance between the two zones to prevent co-channel interference from affecting service quality. The technique enables a wireless system to increase capacity with a limited number radio of channels.
The ability to use the same frequencies repeatedly across a cellular system, made possible by the basic design approach for cellular. Since each cell is designed to use radio frequencies only within its boundaries, the same frequencies can be reused in other cells not far away with little potential for interference. The reuse of frequencies is what enables a cellular system to handle a huge number of calls with a limited number of channels.
A technique for utilising a specified range of frequencies more than once within the same satellite system so that the total capacity of the system is increased without increasing its allocated bandwidth. Frequency reuse schemes require sufficient isolation between the signals that use the same frequencies so that mutual interference between them is controlled to an acceptable level. Frequency reuse is achieved by using orthogonal polarisation states (horizontal/vertical for linear, or LHC/RHC for circular) for transmission and/or by using satellite antenna (spot) beams that serve separate, non-overlapping geographic regions.
Technology that allows frequencies to be reused after they have been vacated by a cellular user leaving that particular cell. One measure of a system's effectiveness is how far the initial user of a specific frequency must travel away from the cell site before the frequency may be reused.
