Package net.i2p.client.streaming.impl

Class SimpleBandwidthEstimator

java.lang.Object

net.i2p.client.streaming.impl.SimpleBandwidthEstimator

All Implemented Interfaces:

BandwidthEstimator

class SimpleBandwidthEstimator
extends Object
implements BandwidthEstimator

A Westwood+ bandwidth estimator with a first stage anti-aliasing low pass filter based on RTT, and the time-varying Westwood filter based on inter-arrival time. Ref: TCP Westwood: End-to-End Congestion Control for Wired/Wireless Networks Casetti et al (Westwood) Ref: End-to-End Bandwidth Estimation for Congestion Control in Packet Networks Grieco and Mascolo (Westwood+) Adapted from: Linux kernel tcp_westwood.c (GPLv2)

Since:

0.9.46

Constructor Summary

Constructors

Constructor	Description
SimpleBandwidthEstimator(I2PAppContext ctx, ConnectionOptions opts)

Method Summary

Modifier and Type	Method	Description
void	addSample(int acked)	Records an arriving ack.
float	getBandwidthEstimate()
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

SimpleBandwidthEstimator

SimpleBandwidthEstimator(I2PAppContext ctx,
 ConnectionOptions opts)

Method Details

addSample

public void addSample(int acked)

Records an arriving ack.

Specified by:

addSample in interface BandwidthEstimator

Parameters:

acked - how many packets were acked with this ack

getBandwidthEstimate

public float getBandwidthEstimate()

Specified by:

getBandwidthEstimate in interface BandwidthEstimator

Returns:

the current bandwidth estimate in packets/ms.

toString

public String toString()

Overrides:

toString in class Object