Project 02 – Capacity dimensioning of cellular networks
The purpose of this project is to create a Matlab GUI application that computes the capacity of a cellular network based on some input parameters:
– List of input parameters: Total network bandwidth, channel bandwidth, cluster size (cells per cluster), sectorisation (sectors per cell), mean call duration, call arrival rate, call blocking probability, cell radius (range of values).
– List of output parameters: number of channels per sector/cell/cluster, traffic per user/sector/cell/cluster, number of users per sector/cell/cluster, traffic/user density as a function of the cell radius range.
Relevant keywords and/or documents to get started with the project:
– The cellular concept for mobile communications: cells, clusters, frequency reuse, co-channel interference, sectorisation, etc.
o http://en.wikipedia.org/wiki/Cellular_network
o http://en.wikipedia.org/wiki/Co-channel_interference o http://en.wikipedia.org/wiki/Sector_antenna
– Traffic engineering:
o http://en.wikipedia.org/wiki/Teletraffic_engineering o http://en.wikipedia.org/wiki/Cellular_traffic
o http://en.wikipedia.org/wiki/Erlang_unit
– Plenty of information in: William C. Y. Lee, Mobile Cellular Telecommunications Systems (1989), McGraw-Hill.
– Other relevant aspects/equations:
o Relation between total operator bandwidth, cluster size/frequency reuse factor, sectorisation factor, and RF channel bandwidth# channels per cell/sector.
o Feasible values for reuse factor: K = i2 + ij+ j2 with i,j integers, so K = 1, 3, 4, 7, 9, 12… o Erlang B formula.