Umar Iqbal Choudhry

Learn More
In this paper we propose several mapping schemes for streaming video generated by state–of–the–art H.264 codec over IEEE 802.11e enabled wireless LANs. The schemes take advantage of both 802.11e's QoS mechanism and some novel features of the H.264 codec, so as to protect the most important information in terms of visual quality and reduce distortion under(More)
— Teleconferencing solutions such as VoIP conferenc-ing systems employ acoustic echo cancellers to reduce echoes that are resulted from the coupling between loudspeaker and microphone. While echo cancellation in itself is a very delicate and complex task, requiring an exact modeling of the echo generating environment and a great amount of fine tuning in(More)
  • 1