Multiple fractional channel reservation for multi-service cellular networks

In this paper, the multiple fractional channel reservation (MFCR) strategy for service differentiation is proposed. Contrary to the rest of the channel reservation schemes proposed in the literature, these strategy reserves, on average, real numbers of channels to prioritise different call types (new or handoff) in multiple service environments. Determining the right number of reserved channels for each call type to satisfy all QoS constraints is a difficult task. Also, selecting the right prioritisation order is not an easy process, as it depends on QoS constraints and system characteristics. Thus, an algorithm to determine the optimum numbers of reserved channels to achieve maximum system capacity when using the MFCR is also proposed. To our knowledge, the capacity optimisation problem considering individual QoS constraints for each call type had only been addressed in single service environments.