Case analysis of a Cost-Optimal QoS aggregation policy for network mobility

The network mobility reservation protocol was proposed to increase the scalability of QoS provision in moving networks. However, its scalability is undermined when sessions are bursty and short-lived. QoS aggregation addresses this by holding requests at the mobile router for a time before sending a single aggregated reservation to the access network. This letter analyses a cost-optimal QoS aggregation policy under the case of bursty requests, and compares its expected cost efficiency and user waiting time with that of other previously proposed policies. It is shown that the C-policy reduces operator costs compared to other policies, whilst also reducing expected queueing times.