Joint Optimization of Downlink and D2D Transmissions for SVC Streaming in Cooperative Cellular Networks

Optimal transmission for scalable video coded streaming in cellular wireless networks with the cooperation of local peer-to-peer network

“…The simulation result is shown in Figure 11, where the line with legend Convergence rate 1 stands for the proposed approach, and the line with legend Convergence rate 2 stands for the approach in Feng et al 27 It can be found that the proposed approach can converge to the optimal value obtained by the centralized approach. Since more factors are considered in our model, for example, budget limit and dynamic P2P connections, the convergence rate of the proposed approach is a little slower than that in Feng et al, 27 but it is still rational considering the more complicated network scenario.…”

“…Inspired by the work of Gaudette et al, 26 and as an extension of our previous work, 27 we introduce a continuous step function to approximate the binary function in constraint (7), The continuous step function is expressed by sðx Correspondingly, constraint (7) can be approximated by constraint (16), where the step function is quasiconvex.…”

Distributed control and optimization with resource-constrained networked systems

“…Feng et al [20] study the problem of broadcasting scalable video coded (SVC) streams in cellular networks, where all user equipments (UEs) require the same video content and cooperate with each other, and proposed an optimal downlink and D2D transmission arrangement scheme to minimize the total traffic cost while satisfy the data requirements of all the UEs.…”