Layered wireless video multicast using directional relays

In this paper, we explore the use of directional antennas in relay transmission to improve the performance of video multicast with omni-directional relays in infrastructurebased wireless networks [1]. We describe the system setup with directional relays and determine the user partition along with transmission time scheduling that can optimize a multicast performance criterion. We demonstrate that directional relays significantly improve the multicast system performance compared to omni-directional relays. Furthermore, it also provides larger coverage area.

• Type: Conference
• Year: 2008
• Where: ICIP
• Authors: Ozgu Alay, Thanasis Korakis, Yao Wang, Shivendra S. Panwar
• Keywords: Directional Antennas, Directional Relays, ICIP 2008, Image Processing, Multicast Performance Criterion, Omni-directional Relays