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In this paper, we proposed a new approach, based on principal component analysis (PCA), to evaluate user satisfaction of packet service in GPRS network. Based on our experiment, correlations between different QoS parameters are provided. At the same time, a PCA based user satisfaction factor is defined which reflects the user experience.
In this paper, we described the correlations between uplink packet latency of TCP, application traffic characteristics and uplink characteristics. Our study demonstrated that the packet latency in uplink direction mainly caused by TCP setup time instead of the packet size and the bandwidth. In addition, we also found that TCP failure number varies with the configurations of PDCH in BSS.
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