Impact of penalty time on multilayer network along with UMTS900 deployed with smart traffic handling scheme
Muhammad Usman Sheikh, Jukka Lempiäinen · 2009
The target of this paper is to analyze the impact of penalty time in second generation system in terms of capacity. GSM uses time slots (channels) for carrying traffic, therefore impact of penalty time was only observed in GSM system not in UMTS system. Impact of smart traffic handling scheme was also observed in terms of blocking probabilities. Due to better signal propagation condition at 900 MHz band, it is of keen interest to deploy UMTS900 with other GSM900/1800 and UMTS2100 layer. Handovers are needed to support multilayer and multimode networks e.g. using UMTS and GSM networks together. In this paper, change in overhead traffic caused by additional UMTS900 layer was also analyzed. Extensive number of handovers causes loss in network traffic handling capacity. A compact and organized smart traffic handling is given in this paper which is based on the location of the user, distance of the user from the base station and required service type. The concept of overlay - underlay configuration was also exploited in smart traffic handling scheme.