Cell splitting is a method of subdividing cell into the smaller sized cell. The parent cell that was originally congested is called as macro cells and the smaller cell called as microcells.
The cell is divided into a smaller cell.
In cell splitting the transmit power must be reduced to maintain the S/I ratio.
The radius of the cell is decreased and the co-channel reuse ratio D/R is kept constant to improve the capacity.
In cell splitting large macro-cell are dedicated to high-speed traffic. The reason for a number of handoffs will be less and call progress can be smoothly done.
B) Cell sectoring :
Cell sectoring is a method of decreasing the co-channel interference and enhancing system performance by using a directional antenna.
The cell is divided into 120₀ and 60₀ sectors.
Cell sectoring improves the S/I ratio using a directional antenna.
The radius of the cell is kept constant and the co-channel reuse ratio D/R is decreased to improve the capacity.
-Cell sectoring decreases the coverage area of a group of channels and increases the number of handoffs.