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Broadband QoSE Benchmarking

Previous studies by LIRNEasia have shown the price indicators of broadband in the South Asian region vary within a wide range and deviate significantly from what it should be in a competitive market. Consumers are at the mercy of monopolistic and oligopolistic market players to accept these undesirable conditions. These studies have not explored the bandwidth availability.

In the absence of an efficient pro-market regulatory environment, it has become common for some operators to offer lower bandwidth than stipulated. This practice is often justified by the partially true claim that the bottleneck can happen anywhere between the user and the destination site, so may not necessarily within the control of the local operator. Ordinary user, possessing neither the equipment nor the technical knowledge to ascertain or deny that usually has no alternative than taking the word of the operator.

Broadband performance can be evaluated by conducting speed tests. Test sites provide a variety of information about the speed of a link. A meticulous design of tests can illustrate not just the performance in each case but the exact segment where the bottleneck happens. The tests can also be the basis for Service Level Agreements (SLAs) between the operators and users. SLAs ensure the users receiving promised bandwidth or compensation in case of a failure from the operator’s part

This project is designed as a two country study for comparison. Chanuka Wattegama and Nilusha Kapugama carry out this project with external consultants from India and Sri Lanka.

The following parameters will be measured from the user end:

Metric

Description
Download speed (kbps) One of the key advertised metrics in broadband services in the download speed, how much traffic a subscriber can receive to the maximum.
Upload Speed(kbps) This metrics define the speed in which the subscriber can send traffic to Internet. Plays a significant role in responsiveness and real-time applications like VOIP.
Round TripTime (milli-sec) Time taken for the traffic to reach a particular destination and return. This is significant in systems that require two-way interactive communication, such as voice telephony, or online games.
Jitter (milli-sec) Jitter is the variation of end-to-end delay from one packet to the next within the same packet stream/connection/flow. Jitter experienced by the packets, more relevant for Real-time traffic like VOIP.
Packet-Loss(in %) Number of packets (in %) which doesn’t reach the destination. This can result in highly noticeable performance issues with Streaming Technologies, VOIP and Video conferencing.
Availability (in %) This measures the number of times we are able to access the Broadband services. If T attempts are made to connect to the Internet, and if F times the attempt failed, then Availability = (1–F/T) x 100% .

Project documents

Broadband QoSE test plan

Speeches/presentations from the March 18 event

Comments from the Chair – Rohan Samarajiva

Introduction to broadband and test methodology – Timothy A. Gonsalves

Preliminary QoS test results – Chanuka Wattegama

Presentation slides – Nimal Maddumage, Deputy General Manager (Broadband Networks) Sri Lanka Telecom

Presentation slides – Dinesh Arunatileka, General Manger Marketing, Dialog Broadband Services

Response to Bangladesh Telecom Regulatory Authority on their proposed Broadband plan

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