(→TCP Congestion Control Algorithms over a live HSDPA Network) |
(→TCP Congestion Control Algorithms over a live HSDPA Network) |
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Riga 34: | Riga 34: | ||
* Goodput-RTT plots for [[Tcp_over_Hsdpa:goodput_rtt_downlink|downlink]] and [[Tcp_over_Hsdpa:goodput_rtt_uplink|uplink]] channels. | * Goodput-RTT plots for [[Tcp_over_Hsdpa:goodput_rtt_downlink|downlink]] and [[Tcp_over_Hsdpa:goodput_rtt_uplink|uplink]] channels. | ||
* Timeouts and packet loss ratio bar graphs for [[Tcp_over_Hsdpa:plrto_downlink|downlink]] and [[Tcp_over_Hsdpa:plrto_rtt_downlink|uplink]] channels (3 times timeouts and 2 times packet loss ratio of BIC/CUBIC wrt NewReno/Westwood+) | * Timeouts and packet loss ratio bar graphs for [[Tcp_over_Hsdpa:plrto_downlink|downlink]] and [[Tcp_over_Hsdpa:plrto_rtt_downlink|uplink]] channels (3 times timeouts and 2 times packet loss ratio of BIC/CUBIC wrt NewReno/Westwood+) | ||
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+ | ==Congestion window and RTT evolutions== | ||
+ | [[Immagine:hsdpa_cwnd_1_flow_downlink_westwood.png|500px|]] | ||
+ | [[Immagine:hsdpa_cwnd_1_flow_downlink_newreno.png|500px|]] | ||
+ | [[Immagine:hsdpa_cwnd_1_flow_downlink_bic.png|500px|]] | ||
+ | [[Immagine:hsdpa_cwnd_1_flow_downlink_cubic.png|500px|]] |
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 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: