Title :
Layered wireless video multicast using directional relays
Author :
Alay, Özgü ; Korakis, Thanasis ; Wang, Yao ; Panwar, Shivendra
Author_Institution :
Dept. of Electr. & Comput. Eng., Polytech. Univ., Brooklyn, OH
Abstract :
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 infrastructure- based wireless networks. 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.
Keywords :
directive antennas; multicast communication; multimedia communication; video coding; video communication; DTPA; acute renal rejection diagnosis; acute renal rejection identification; acute renal rejection transplant classification; biopsy; blood testing; dynamic contrast enhanced magnetic resonance imaging; graft failure; image analysis approach; inulin clearances; kidney transplantation; motion correction models; noninvasive framework; renal transplantation; tissue; transplanted kidney failure; urine testing; Bandwidth; Directional antennas; Electronic mail; Power system relaying; Relays; Scheduling; Spread spectrum communication; System performance; Video coding; Wireless networks; directional antennas; layered video coding; relays; wireless video multicast;
Conference_Titel :
Image Processing, 2008. ICIP 2008. 15th IEEE International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-1765-0
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2008.4712181
