Delivering live-action to handheld devices: Experimental results and recommendations

AR Nix, DE Halls, DR Bull, G Zaggoulos

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

This paper addresses the multicast capabilities of WiFi systems transmitting to handheld devices in outdoor public spaces. The analysis includes a comparison of access point antennas in terms of received signal strength for different conditions and handset orientations. An H.264 AVC encoder and IP packetisation unit is used to multicast IP video streams to WiFi enabled mobile clients. Measurement and simulation results show that body shadowing and handset orientation seriously degrade the video quality. Dual polarized AP antennas are shown to enhance operating range and video performance. A shadowing and depolarization margin of 22dB is required to ensure high quality multicast reception at the mobile handsets.
Translated title of the contributionDelivering live-action to handheld devices: Experimental results and recommendations
Original languageEnglish
Title of host publicationLoughborough Antennas & Propagation Conference, 2009 (LAPC 2009), Lougborough, UK
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages36 - 41
Number of pages6
ISBN (Print)9781424427208
DOIs
Publication statusPublished - 16 Nov 2009

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