Iterative receiver algorithm for millimeter wave mobile hotspot network system

The need of high speed data rate services at mobile group vehicles moving at high speed has been on the increase. ETRI (Electronics and Telecommunications Research Institute) has been designing and developing a new moving wireless backhaul system, Mobile Hotspot Network (MHN) system, which can support over 1Gbps data rate services for mobile group vehicles running at high speed up to 500km/h such as KTX (Korea Train Express) express train. In this paper, the methods to adopt the iterative receiver algorithm are introduced to improve MHN system performance. One of the main characteristics of MHN system is to apply multi-flow structure, which may cause interferences between two data stream, therefore, this can degrade system performance. However, due to multi-flow characteristic, we can apply the iterative receiver algorithm. In this paper, we showed the possibility to improve system performance by applying iterative receiver algorithm. Currently, we have developed the MHN test-bed system and had a goal to demonstrate the real time performance of the MHN system in the outdoor environment by Feb., 2016. Outdoor demonstration will be shown at line 8 subway in Seoul, Korea.