ABSTRACT
The chapter demonstrates how to plan an OFDM-based network. The key air interface technology used in WiMAX is OFDM. OFDM is an efficient form of multi-carrier modulation schemes, which is used in most of the modern communication technologies, such as 3G-LTE, DSL, 4G Cellular Systems and WiMAX. Although, there are some limitations associated with the multicarrier modulation such as high cost of low pass filters to achieve orthogonality and the requiring of a number of independent frequency channels for each sub-streams, OFDM technique copes with those problems and efficiently uses the available spectrum. Before the establishment of a communication network, a careful planning and dimensioning of the network is necessary. Network dimensioning and planning is the most significant part of the network design, which should be considered from three different perspectives of dimensioning for service, coverage and capacity.
