Conclusion and Future Outlook

As the 4G chapter closes, a new era beckons which requires networking technology to evolve and to be ready for next‐generation services and demand. We not only need to evolve legacy system to be more competitive, but we also require new disruptive ideas to secure the 5G market and foster growth for the future. Indeed, we need to adopt a proactive stance in order to be ready for the 5G story. In this concluding chapter, we will harness some of the technology paradigms discussed in the previous chapters to build a picture of the current state of 5G emphasising some of the challenge that still lie ahead, particularly on green networking and inter‐layer design. As a final discussion on the 5G story, the editor shares his vision on the future for 5G mobile.