Cell planning in Manhattan environments

Using microcells is one way to meet the demand for high capacity in future mobile communication systems. In large cities, small cells can be achieved by placing base station antennas at approximately street level, using the surrounding buildings as propagation obstacles. Cell planning strategies for microcells are quite different from the cell planning strategies used for macrocells. However, as shown, the terrain structure allows a more efficient channel reuse. A simple model of a large city consisting of square blocks with streets in between (Manhattan model) is used. Efficient strategies for street microcells are suggested. Results show that for fixed planning in a microcellular system, a very small number of channel groups will suffice to achieve acceptable signal-to-interference ratios