TCP-GT: A New Approach to Congestion Control Based on Goodput and Throughput
- Authors
- Jung, Hyungsoo; Kim, Shin-Gyu; Yeom, Heon Young; Kang, Sooyong
- Issue Date
- Oct-2010
- Publisher
- KOREAN INST COMMUNICATIONS SCIENCES (K I C S)
- Keywords
- Congestion control; high bandwidth-delay product networks (HBDP); protocol design
- Citation
- JOURNAL OF COMMUNICATIONS AND NETWORKS, v.12, no.5, pp.499 - 509
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF COMMUNICATIONS AND NETWORKS
- Volume
- 12
- Number
- 5
- Start Page
- 499
- End Page
- 509
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/173628
- DOI
- 10.1109/JCN.2010.6388496
- ISSN
- 1229-2370
- Abstract
- A plethora of transmission control protocol (TCP) congestion control algorithms have been devoted to achieving the ultimate goal of high link utilization and fair bandwidth sharing in high bandwidth-delay product (HBDP) networks. We present a new insight into the TCP congestion control problem; in particular an end-to-end delay-based approach for an HBDP network. Our main focus is to design an end-to-end mechanism that can achieve the goal without the assistance of any network feedback. Without a router's aid in notifying the network load factor of a bottleneck link, we utilize goodput and throughput values in order to estimate the load factor. The obtained load factor affects the congestion window adjustment. The new protocol, which is called TCP-goodput and throughput (GT), adopts the carefully designed inversely-proportional increase multiplicative decrease window control policy. Our protocol is stable and efficient regardless of the link capacity, the number of flows, and the round-trip delay. Simulation results show that TCP-GT achieves high utilization, good fairness, small standing queue size, and no packet loss in an HBDP environment.
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