Enhancement of the Channel Capacity Using MIMO-OFDM Technology for Wireless Transmission System

Orthogonal frequency division multiplexing (OFDM) can be used with a multiple-input multiple output (MIMO) system to improve communication quality and capacity. In This paper we shows channel enhancement using MIMO-OFDM technology We analyze the effects of pilot-symbol-aided channel estimation on the lower bound of the system capacity in MIMO-OFDM systems with three different types as well as We derive the optimal pilot-to- data power ratio (PDR) for each of these patterns.