Radio link control-acknowledged mode protocol performance modeling in UMTS
Bouygues Telecom, Velizy, France
DOI: 10.1109/MWCN.2002.1045747 Conference: Mobile and Wireless Communications Network, 2002. 4th International Workshop on
In this paper, we analyze the performance of the RLC (radio link control) layer in acknowledged mode (AM) in UMTS. In a third generation wireless network like UMTS, the RLC-AM protocol is used to transfer data reliably across the radio access network. With an automatic repeat request (ARQ) mechanism, this protocol is able to provide error correction and in-sequence delivery of IP packets. First, we analytically study the behavior of this link layer when reordering is disabled. Then, we present a simple simulation model for in-sequence delivery, easy to implement and able to capture the main characteristics of the RLC protocol. Theoretical and simulation results are compared in order to prove that a very simple simulation model can behave almost exactly like the RLC layer in UMTS.
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