Radio planning
Date: 2015-10-07; view: 431.
As previously described, cellular radio re-uses the same radio channels in different cells and because of this re-use, two mobiles using the same channel in different cells may interfere with each other, a phenomenon known as co-channel interference. The key objective of planning a cellular radio system is to design the cell repeat pattern and frequency allocation in order to maximise the capacity of the system whilst controlling co-channel interference to within acceptable limits.
Figure 47.4Cell repeat patterns: (a) four cell repeat; (b) seven cell repeat; (c) twelve cell repeat
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