Random early detection gateways for congestion avoidance
IEEE/ACM Transactions on Networking (TON)
WCDMA for UMTS: Radio Access for Third Generation Mobile Communications
WCDMA for UMTS: Radio Access for Third Generation Mobile Communications
ACK Delay Control for Improving TCP Throughput over Satellite Links
ICON '99 Proceedings of the 7th IEEE International Conference on Networks
Modeling wireless links for transport protocols
ACM SIGCOMM Computer Communication Review
Using Buffer Management in 3G Radio Bearers to Enhance End-to-End TCP Performance
AINA '06 Proceedings of the 20th International Conference on Advanced Information Networking and Applications - Volume 02
Using TCP flow-aggregation to enhance data experience of cellular wireless users
IEEE Journal on Selected Areas in Communications
Optimizing TCP and RLC interaction in the UMTS radio access network
IEEE Network: The Magazine of Global Internetworking
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When TCP is carried over 3G links, overbuffering and buffer overflow at the RLC layer degrades its performance. In order to prevent these undesired interactions, we propose an algorithm that combines two strategies. If the congestion state of the downlink buffer is moderate, the protocol uses ACK rate control to adjust the sending rate of the source. If the buffer occupancy reaches certain threshold, a single packet is discarded to trigger TCP congestion control measures. By means of extensive simulation experiments, we disclose the influence of each parameter on TCP performance, finding several configurations that improve end-to-end goodput while reducing the delay. The proposal is compared to other approaches, showing a better and more stable behaviour. The operation of the algorithm is deterministic; it does not require changes in 3G specifications nor in end user's protocol stack, and preserves TCP end-to-end semantics