BROWSE
Detail
Conference Paper
End-to-End Available Bandwidth Estimation Scheme for the Bi-Directional Satellite Networks
Cited - time in 
Share 
Share
- Authors
- Min Su Shin, Man Kyu Park, Deock Gil Oh, Byung Chul Kim, Jae Yong Lee
- Issue Date
- 2011-06
- Citation
- International Conference on Computer Engineering and Technology (ICSIE) 2011, pp.1-5
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper presents an efficient and accurate available bandwidth estimation algorithm for satellite links which generally have long propagation delay. Either the method using the rate of returning ACKs or the method using timestamp option is adopted for the bandwidth estimation algorithms to enhance TCP performance in the literature. The method using the rate of returning ACKs, which is the most popular for the available bandwidth estimation for a TCP connection, is known to have the influences from the return link (TCP receiver to TCP sender) traffic variation, especially in the asymmetric satellite links. The bandwidth estimation method using packet sending time information from the TCP timestamp option also has the drawback that the influence of the bottleneck link presented in the forward path is not properly considered. To overcome these limits, our algorithm performs in two steps. A forward path delay is calculated at the sender with the receiver sending time for an ACK packet in the first step. And in the second step, the forward path delay is updated more delicately through removing unrelated part from the forward path delay, and is applied for available bandwidth estimation. The simulation results show that our algorithm can avoid the influence of the traffic variation in the return path (e.g., ACK compression, DAMA delay), and estimate the available bandwidth over the forward path more accurately.
- KSP Keywords
- Bi-directional, End to End(E2E), End-to-end Available Bandwidth Estimation, Estimation method, Long propagation delay, Return link, Satellite link, Satellite network, Second step, TCP connection, TCP performance