(→TCP Congestion Control Algorithms over a live HSDPA Network) |
(→TCP Congestion Control Algorithms over a live HSDPA Network) |
||
Riga 3: | Riga 3: | ||
We report results obtained by an extensive measurement campaign over a live HSDPA network involving more than 3000 flows resulting in around 60 hours of active measurements. The considered TCP variants are the following: | We report results obtained by an extensive measurement campaign over a live HSDPA network involving more than 3000 flows resulting in around 60 hours of active measurements. The considered TCP variants are the following: | ||
− | * [http://www.ietf.org/rfc/rfc2582.txt TCP NewReno]: the congestion control algorithm standardized by IETF | + | * [http://www.ietf.org/rfc/rfc2582.txt TCP NewReno]: the only congestion control algorithm standardized by IETF |
− | |||
* [http://netsrv.csc.ncsu.edu/twiki/bin/view/Main/BIC TCP BIC]: the default congestion control algorithm adopted by the Linux o.s. | * [http://netsrv.csc.ncsu.edu/twiki/bin/view/Main/BIC TCP BIC]: the default congestion control algorithm adopted by the Linux o.s. | ||
* [http://netsrv.csc.ncsu.edu/twiki/bin/view/Main/BIC TCP Cubic]: a congestion control algorithm designed for fast convergence employing a cubic function in the probing phase | * [http://netsrv.csc.ncsu.edu/twiki/bin/view/Main/BIC TCP Cubic]: a congestion control algorithm designed for fast convergence employing a cubic function in the probing phase | ||
* [[Westwood | TCP Westwood+]]: available in the Linux kernel (both 2.4 and 2.6 kernels). | * [[Westwood | TCP Westwood+]]: available in the Linux kernel (both 2.4 and 2.6 kernels). | ||
− | The experimental evaluation has been carried out by accessing the public Internet using a HSDPA card (see figure below). | + | The experimental evaluation has been carried out by accessing the public Internet using a commercial HSDPA card (see figure below). |
[[Immagine:HsdpaTestbed.png]] | [[Immagine:HsdpaTestbed.png]] |
We report results obtained by an extensive measurement campaign over a live HSDPA network involving more than 3000 flows resulting in around 60 hours of active measurements. The considered TCP variants are the following:
The experimental evaluation has been carried out by accessing the public Internet using a commercial HSDPA card (see figure below).
The following instantaneous variable measurements have been collected by using the libnetmeas library:
The main findings of the investigation can be summarized as follows:
We report cumulative distribution function plots:
We report results obtained by an extensive measurement campaign over a live HSDPA network involving more than 3000 flows resulting in around 60 hours of active measurements. The considered TCP variants are the following:
The experimental evaluation has been carried out by accessing the public Internet using a HSDPA card (see figure below).
The following instantaneous variable measurements have been collected by using the libnetmeas library:
The main findings of the investigation can be summarized as follows:
We report cumulative distribution function plots: