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With the rapid development of vehicular and ICT technologies, Vehicular Content Networks (VCNs) play an important role in facilitating better road safety and comfortable driving. Because the content, such as traffic reports and disaster warning messages, must be delivered efficiently and timely, how to guarantee and improve the performance of VCNs becomes a hot issue. Recently, caching with the parked...
Multicast is a spectrum-efficient way to support emerging multimedia services over wireless network, where a group of users receive messages over a common wireless channel. Cooperative transmission is a promising technology to improve multicast performance by exploring the cooperative diversity. Different from conventional cooperative multicast schemes, we take the heterogeneity of the multicast group...
This paper investigates the joint optimization of multiuser packet scheduling and wireless resource allocation for video communications over downlink orthogonal frequency-division multiple-access (OFDMA) systems. The objective is to maximize the expected video quality of all mobile users under the wireless resource and delay-bound constraints. We formulate a quality-driven cross-layer problem to jointly...
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