FUNDAMENTAL STUDY TO REALIZE A ULTRA HIGH-SPEED AND EXTREMELY WIDE BAND MOBILE NETWORK

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A fundamental study on numerical simulation methods to estimate indoor radio propagation characteristics and to design propagation channels was carried out in this research that is useful to build the next generation ultra high-speed and extremely wide band mobile network. As research results, we proposed and developed several numerical tools based on the finite difference time domain technique for estimations of indoor and outdoor-to-indoor propagation characteristics and design methods of propagation channel. Furthermore, it is confirmed that numerical simulations using the high-performance computing systems always offer the highly accurate results in the reasonable elapsed time.