quality of experience Archives


At the end of a long day at Telecoms World South Asia in Dhaka, I presented some of the preliminary results of the Broadband QoSE work being done with IIT Madras. I talked about the finding that the bottleneck in Chennai and Colombo appeared to be the international segment and that the first results from the testing done in Dhaka suggested the same applied to Bangladesh, with the ISPs using satellite (versus undersea cable) were suffering very high latencies. The CEO of a Pakistan ISP, Mr Wahaj us Siraj, said that the situation in Pakistan was very different, with plenty of capacity available on the undersea cables and low contention ratios (1:4) being used. Prices of international capacity had come down radically in recent times, he said, and now amount to only around 25 per cent of costs. I responded that we need to start testing in Pakistan soon, because this further illustrates the value of the AshokaTissa methodology, which allows the diagnosis of where problems exist which may vary from location to location.