|Title of host publication||International Conference on Consumer Electronics (ICCE), Las Vegas|
|Publisher or commissioning body||Institute of Electrical and Electronics Engineers (IEEE)|
|Publication date||Jan 2009|
|Pages||1 - 2|
|Number of pages||2|
|Conference||International Conference on Consumer Electronics (ICCE)|
|Period||1/01/09 → …|
This paper addresses the broadcast capabilities of WiFi systems transmitting to handheld devices. The analysis includes a comparison of different antennas at the access point (AP) in terms of received signal strength indication (RSSI) for different channel conditions and handset orientations. An H.264 AVC encoder and IP packetisation unit is used to broadcast IP video streams to mobile clients. Measurement and simulation results show that body shadowing and handset orientation can seriously degrade the video quality. The use of dual polarized antennas at the AP is shown to enhance range and video performance. A shadowing and depolarisation margin of around 14dB is required to ensure high quality broadcast reception.
Rose publication type: Conference contribution
Additional information: With accompanying conference presentation
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International Conference on Consumer Electronics (ICCE)
|Duration||1 Jan 2009 → …|