Reliability Enhancement for VR Delivery in Mobile-Edge Empowered Dual-Connectivity Sub-6 GHz and mmWave HetNets

The reliability of current virtual reality (VR) delivery is low due to the limited resources on VR head-mounted displays (HMDs) and transmission rate bottleneck sub-6 GHz networks. In this paper, we propose a dual-connectivity mmWave heterogeneous network architecture empowered by mobile edge capability. core idea proposed utilize complementary advantages links conduct collaborative resource design, which aims improve delivery. From perspective stochastic geometry, analyze theoretically demonstrate that can be used enhance despite large bandwidth. Based our analytical work, formulate joint caching computing optimization problem with goal maximize By analyzing coupling strategies at HMDs, base stations (BSs), further transform into multiple-choice multi-dimension knapsack problem. A best-first branch bound algorithm difference convex programming are obtain optimal sub-optimal solution, respectively. Numerical simulations performance improvement using algorithms, reveal more monocular videos BSs stereoscopic efficiently.