Asymptotic analysis of multistage cooperative broadcast in wireless networks
IEEE/ACM Transactions on Networking (TON) - Special issue on networking and information theory
Implementing a cooperative MAC protocol for wireless video multicast
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Space-Time Coding: Theory and Practice
Space-Time Coding: Theory and Practice
Randomized Space-Time Coding for Distributed Cooperative Communication
IEEE Transactions on Signal Processing
Cooperative wireless communications: a cross-layer approach
IEEE Wireless Communications
Space-time block codes from orthogonal designs
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Source and Channel Coding for Cooperative Relaying
IEEE Transactions on Information Theory
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
CoopMAC: A Cooperative MAC for Wireless LANs
IEEE Journal on Selected Areas in Communications
Overview of the Scalable Video Coding Extension of the H.264/AVC Standard
IEEE Transactions on Circuits and Systems for Video Technology
Cooperative wireless multicast: performance analysis and power/location optimization
IEEE Transactions on Wireless Communications
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With the increased popularity of mobile multimedia services, efficient and robust video multicast strategies are of critical importance. In a conventional multicast system, the source station transmits at the base rate of the underlying network so that all the nodes can receive the data correctly. The performance of such a multicast system is limited by the node with the worst channel conditions, which usually corresponds to the nodes at the edge of the multicast coverage range. To overcome this problem, we propose a two-hop cooperative transmission scheme where in the first hop the source station transmits the packets and the nodes who receive the packets forward the packets simultaneously in the second hop using Randomized Distributed Space Time Codes (R-DSTC). We further integrate this randomized cooperative transmission with layered video coding to provide users different video quality based on their channel conditions. The performance of the system is evaluated and compared with a conventional multicast system. Our results show that the proposed cooperative system significantly improves the performance compared to conventional multicast.