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分析了基于IEEE802.16d标准的正交频分复用(Orthogonal Frequency Division Mul-tiplexing,OFDM)系统在SUI-3信道下的误码性能,并对发射端的帧结构以及组帧方式作了详细说明。通过实验仿真发现利用帧前导做信道估计得出的误码性能要优于没有信道估计的情况。
The BER performance of Orthogonal Frequency Division Mul-tiplexing (OFDM) system based on IEEE802.16d is analyzed, and the frame structure and framing mode of the transmitter are described in detail. . Through experimental simulation, it is found that the bit error rate performance of the channel estimation using frame preamble is better than the case of no channel estimation.