The fifth generation (5G) of wireless system is designed to fuel new communication paradigms, such as internet of things (IoT) and mobile internet services, where numerous sensors and devices are interconnected and demanded for improvements on several issues. The rapid development of IoT has trigger 1000-fold data traffic increase by 2020 for 5G, however it introduces a large of unexpected electromagnetic interference[1].Therefore,in vestigating higher spectral efficiency technology becomes one of the key breakthrough. Meanwhile, due to the fast growth of IoT, 5G also needs to support massive access among users and/or devices. To address the issue, enhanced technologies are necessary.