Slope based discard: a buffer management scheme for 3G links supporting TCP traffic
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Combining ACK rate control and AQM to enhance TCP performance over 3G links
Proceedings of the ACM international workshop on Performance monitoring, measurement, and evaluation of heterogeneous wireless and wired networks
Link layer adaptation for shared wireless links
Mobile Networks and Applications
Simulation of 3G DCHs supporting TCP traffic: design, experiments and insights on parameter tuning
Proceedings of the 1st international conference on Simulation tools and techniques for communications, networks and systems & workshops
Using buffer management in 3G radio bearers to enhance end-to-end TCP performance
International Journal of Wireless and Mobile Computing
Performance evaluation of AQM schemes in rate-varying 3g links
PWC'06 Proceedings of the 11th IFIP TC6 international conference on Personal Wireless Communications
First impressions on the state of cellular data connectivity in India
Proceedings of the 4th Annual Symposium on Computing for Development
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TCP, the dominant transport protocol for Internet applications, suffers severe performance degradation due to packet losses when a wireless link is present in the end-to-end path. For this reason, the 3G specification entity, 3GPP, has defined a reliable link layer protocol, RLC, to support packet switched services over UMTS. RLC provides error recovery in the radio access network by means of an ARQ algorithm. Early studies supported the benefit of using a reliable link protocol, while more recent studies outline new problems arising from RLC and TCP interaction and how to overcome them. This article describes the most relevant issues concerning TCP-RLC interaction and evaluates the most practical enhancement approaches, based on optimum parameter configuration at the transport and link layers. We devote special attention to RLC, whose specific configuration decisions are left to operators, and provide specific guidelines for setting its parameters. In addition, we propose two operational changes for enhancing the buffer management strategy, one of the main drawbacks of RLC