Please use this identifier to cite or link to this item: https://doi.org/10.1109/ICNP.2013.6733597
Title: Mitigating egregious ACK delays in cellular data networks by eliminating TCP ACK clocking
Authors: Leong, W.K. 
Xu, Y.
Leong, B. 
Wang, Z.
Issue Date: 2013
Source: Leong, W.K.,Xu, Y.,Leong, B.,Wang, Z. (2013). Mitigating egregious ACK delays in cellular data networks by eliminating TCP ACK clocking. Proceedings - International Conference on Network Protocols, ICNP : -. ScholarBank@NUS Repository. https://doi.org/10.1109/ICNP.2013.6733597
Abstract: It is not uncommon for the uplink buffers of cellular data networks to be saturated when the uplink bandwidths are low. This can cause the ACK packets for a downlink TCP flow to be severely delayed. Since existing TCP implementations are ACK-clocked, the downstream flow will suffer significant degradation, causing the downlink to be under-utilized. We present a new TCP variant, called TCP Receiver-Rate Estimation (TCP-RRE), that addresses this problem directly by eliminating ACK clocking. Instead, it uses TCP timestamps to estimate the receiving rate at the receiver, which it then uses to determine the sending rate. We show that TCP-RRE is able to improve download speeds by 2 to 4 times compared to existing TCP variants in both simulation and on real commercial cellular data networks. Our solution is practical because it is compatible with existing TCP implementations, requires no modifications to existing mobile devices, and is thus immediately deployable in existing ISP proxies. © 2013 IEEE.
Source Title: Proceedings - International Conference on Network Protocols, ICNP
URI: http://scholarbank.nus.edu.sg/handle/10635/78235
ISBN: 9781479912704
ISSN: 10921648
DOI: 10.1109/ICNP.2013.6733597
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