An improved pilot pattern algorithm for facilitating the channel estimation in multiple input\nmultiple output-orthogonal frequency division multiplexing (MIMO-OFDM) systems is proposed in\nthis paper. The presented algorithm reconfigures the parameter in the least square (LS) algorithm,\nwhich belongs to the space-time block-coded (STBC) category for channel estimation in pilot-based\nMIMO-OFDM system. Simulation results show that the algorithm has better performance in contrast\nto the classical single symbol scheme. In contrast to the double symbols scheme, the proposed\nalgorithm can achieve nearly the same performance with only half of the complexity of the double\nsymbols scheme.
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