Analytical Study of the Probability of Coverage in Hybrid Broadcast-Unicast Networks
Résumé
Linear services such as mobile TV are witnessing an increasing demand, creating challenges for conventional delivery methods in both broadcast and broadband networks. To overcome this problem, a hybrid delivery approach combining both networks has recently emerged. Using stochastic geometry and a Poisson point process distribution of the users and access points, this paper discusses a hybrid broadcast/unicast network model where an analytical approach was undertaken, deriving a new expression for the probability of coverage. The model is then used to assess the feasibility of the proposed hybrid scheme and then extended to numerically find the optimal operation point in terms of key design parameters including user density in the network.