On the capacity of TDMA cellular systems with dynamic channel assignment, power control and adaptive modulation

Abstract

This paper investigates three techniques for optimising the capacity of cellular communication schemes: power control, dynamic channel assignment and adaptive modulation and coding. Each scheme, and combination of schemes, is investigated under the same assumptions for channel model, number of cells and quality of service provision; and simulation is used to derive the number of simultaneous users that can be supported in each case. It is shown that the additional complexity of adaptive modulation and coding is rarely justified, and that the facility for intracell handoffs is the most important technique to include in an efficient resource allocation algorithm.