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With a new video coding standard high efficiency video coding (HEVC), the ultra high definition (UHD) TV service with robust video streaming technology is emerging in the TV industry. This paper addresses the system architecture for the UHD video streaming and proposes two main ideas: (i) picture prioritization method, (ii) error concealment mode signaling (ECMS). In the experiments using HEVC reference...
In this paper, we investigate transmission power allocation for support of broadcast/multicast services (BMSs) in multi-cell OFDM systems. We consider a cooperative architecture for distribution of the BMS data where the copies of the same data are transmitted by multiple base stations (BSs) in a synchronized manner and then aggregated at the receiving users. Under this architecture, we develop a...
In this paper, we discuss how to achieve optimal subcarrier allocation for multicast services in wireless OFDM systems. The multicast capacity is limited by the user with the worst channel condition. To overcome this limitation, we exploit the fine granularity scalability (FGS) video coding which divides multicast data into base layer and enhancement layer data. Then we develop an optimal subcarrier...
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