A cross-layer design framework for robust IPTV services over IEEE 802.16 networks
IEEE Journal on Selected Areas in Communications - Special issue on broadband access networks: Architectures and protocols
Resource Management and QoS Provisioning for IPTV over mmWave-based WPANs with Directional Antenna
Mobile Networks and Applications
Adaptive Transmission of Multi-Layered Video over Wireless Fading Channels
IEEE Transactions on Wireless Communications
Wireless Mesh Networks for In-Home IPTV Distribution
IEEE Network: The Magazine of Global Internetworking
Scheduling algorithms for video multicasting with channel diversity in wireless OFDMA networks
MobiHoc '11 Proceedings of the Twelfth ACM International Symposium on Mobile Ad Hoc Networking and Computing
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In conventional wireless systems with layered architectures, the physical layer treats all data streams from upper layers equally and apply the same modulation and coding schemes. Newer systems such as Digital Video Broadcast start to introduce hierarchical modulation schemes with SuperPosition Coding (SPC) and support data streams of different priorities. However, SPC requires specialized hardware and has high complexity beyond most existing handheld devices. We thus propose scalable modulation (s-mod) by reusing the current mainstream modulation schemes with software-based bit-remapping. In this paper, we study how to optimize the configuration of the physical layer s-mod and coding schemes to maximize the utility of videocast with Scalable Video Coding (SVC). Simulation results demonstrate significant performance gains using s-mod and the cross-layer optimization, indicating s-mod and SVC is a good combination for wireless video multicast and unicast.