Abstract
Virtual reality (VR) is regarded as a profoundly disruptive technology in the future because of its ability to create an immersive experience for people. Instead of being wired by cable, interconnected VR devices are connected over wireless, which brings big challenges for the wireless network to cope with the high data rate and low latency requirements of interconnected VR. In this paper, the critical performance of VR is analyzed by using the tool of stochastic geometry in a 3-D urban scenario with densely deployed low-power nodes which form a so called ultra-dense network. To mitigate the severe inter-cell interference for these densely deployed small base stations, a two-stage cooperative transmission scheme is proposed, where the coordination range is determined and further divided into two sub-regions with different interference coordination methods employed. The expressions of the average VR data rate and the latency probability based on the proposed scheme are derived. Numerical results are further conducted to evaluate the advantage of the proposed scheme and verify the accuracy of the theoretical analysis.
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