QoS-based optimal buffering for short message transfer in GPRS/UMTS networks

The newly introduced multimedia messaging service (MMS), which can be used over the general packet radio service (GPRS)/Universal Mobile Telecommunication (UMTS) short message service (SMS) network demands on an efficient mechanism for handling the message traffic. In this paper, we consider the system's quality of service (QoS) requirements to the new and forwarded messages and design an optimal buffering scheme for short message transfer in GPRS/UMTS networks, such that the requirements are met. An analytic model is developed that employs one-dimensional continuous-time Markov chain. Based on the model, a search algorithm is designed to find the optimal parameters of the system.