NDLI: Improving GPRS/EDGE end-to-end performance by optimization of the RLC protocol and parameters

Content Provider	IEEE Xplore Digital Library
Author	Ball, C.F. Ivanov, K. Bugl, L. Stockl, P.
Copyright Year	2004
Description	Author affiliation: I&C Mobile Networks, Siemens AG, Munich, Germany (Ball, C.F.; Ivanov, K.; Bugl, L.; Stockl, P.)
Abstract	The end-to-end performance in both GPRS and EDGE is strongly related to the efficiency of the RLC/MAC protocol. In this paper, we focus on the optimization of several parameters like RLC polling period, RLC roundtrip time and RLC window size. Furthermore, we discuss specific implementation options as well as control mechanisms provided by the standard. The optimum settings of these parameters and their mutual interaction evaluated by simulations have been confirmed by PING and application throughput measurements in a real system. In addition, different architectural aspects such as PCU embedded either in the BSC or in the BTS and 64 kbps vs. 16 kbps based Abis interface have been discussed. The new concept of "RLC frequent retransmission prevention" on the sender side allows fast polling by simultaneously avoiding retransmission of RLC blocks with pending acknowledgement status. The novel fast polling strategy provides about 3 dB to 4 dB link level gain as well as user throughput enhancement in the order of 20% for GPRS and 30% for EDGE.
Starting Page	4521
Ending Page	4527
File Size	2183231
Page Count	7
File Format	PDF
ISBN	0780385217
ISSN	10903038
DOI	10.1109/VETECF.2004.1404935
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ground penetrating radar Throughput Media Access Protocol Automatic repeat request Performance gain Modulation coding Base stations GSM Scheduling algorithm Degradation
Content Type	Text
Resource Type	Article

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