Performance of UMTS Radio Link Control

01 January 2002

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The Radio Link Control (RLC) protocol for Universal Mobile Telecommunications Systems (UMTS) contains a suite of features and options which make the protocol very flexible and adaptive to operate in different radio environments and for various applications. In this paper, we evaluate the performance of the RLC protocol over UMTS specific physical link for web browsing application. Specifically, we examine the detail behavior of the protocol under various conditions and features, including polling and status transmission mechanism, SDU discard functions. We compare different polling mechanism and examine its impact on the delay and throughput as well as acknowledgement overhead. We also compare different discard parameters and service rates and evaluate their impacts on performance. Finally we provide the average delay, throughput and error rate of downloading a web page.