what are the various mechanism to incress capacity in cellular system
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Cell splitting is the process of sub dividing a congested cell into smaller cells, each with its own base station and corresponding reduction in antenna height and transmitted power.
Cell splitting increases capacity of a cellular system since it increases number of times that channels are reused.
Cell sectoring:
In cell sectoring a single omnidirectional antenna at base station is replaced by several directional antennas, each radiating within a specified sector.
By using directional antennas power is transmitted in single desired direction decreasing number of interfering co-channel cells and co-channel interference.
Microcell zone concept:.
The increased number of hand off, increase load on the switching and control link because of sectoring. A solution to this problem is given by microcell zone concept
Large control base station is replaced by several lower power transmitters on the age of cell.
Cell splitting is the process of sub dividing a congested cell into smaller cells, each with its own base station and corresponding reduction in antenna height and transmitted power.
Cell splitting increases capacity of a cellular system since it increases number of times that channels are reused.
Cell sectoring:
In cell sectoring a single omnidirectional antenna at base station is replaced by several directional antennas, each radiating within a specified sector.
By using directional antennas power is transmitted in single desired direction decreasing number of interfering co-channel cells and co-channel interference.
Microcell zone concept:.
The increased number of hand off, increase load on the switching and control link because of sectoring. A solution to this problem is given by microcell zone concept
Large control base station is replaced by several lower power transmitters on the age of cell.
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