Bastiaan Kleijn, Gunnar Karlsson and Mikael Skoglund
Source of Funding: VINNOVA Time Period: January 2002 -- December 2004 Volume: 1.5 MSEK per year
Participants
This project is shared between the KTH
departments of Speech, Music and Hearing (Bastiaan Kleijn),
Microelectronics and Information Technology (Gunnar Karlsson) and Signals,
Sensors and Systems (Mikael
Skoglund).
Abstract
The purpose of this project is to study how
audio-visual services can be provided in the Internet with wireless
access. The problem of transmitting coded source data over a wired
packed-switched communication network, such as the Internet, stems
from delay and loss of packets under high network loads. When radio
access is an integral part of a packet network, the link-error
probability cannot be ignored. Furthermore, the expense of bandwidth
implies that high network efficiency is desired. Our research
addresses this complex task. We will study robust source coding,
adaptive error control coding and traffic control, with consideration
to multicast and hand-over between similar and different radio
networks. The approach is to combine theoretical studies of the
fundamental issues with actual system design: We intend to implement
practical audio and video communication systems, which are optimized
for the wireless packet-switched environment and which are based on
the methods we develop.
Publicerad av: Skolan för Elektro- och Systemteknik Andreas Stenhall, stenis@ee.kth.se
Senast uppdaterad:
2006-10-17 08:50
