A Statistical Analysis of Uplink Packet Latency in GPRS Network

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Executive Summary

In this paper, the authors described the correlations between uplink TCP packet latency, behavior of TCP and behavior of application. Pearson product moment correlation analysis and partial correlation analysis are worked out to characterize correlations between five user perceived parameters. Their study demonstrated that the packet latency in uplink direction mainly caused by TCP setup time instead of the packet size. In addition, they also found that a larger continual successful transmit byte number lead to a smaller packet latency. These results illuminate the directions of end to end optimizations both in handset side and network side.

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