Abstract:

The concepts of the normalized bandwidth and the normalized signal-to-noise ratio are defined, which are used to construct the plane model. Based on the model, a method of measuring the overall resource efficiency of the MIMOOFDM system is proposed. This method obtains the overall resource efficiency of the MIMO-OFDM system under different detection algorithms and different modulation. The main conclusion is that the MIMO-OFDM system with the maximum likelihood detection algorithm has the relatively high overall resource efficiency, and using Mary quadrature amplitude modulation (MQAM) has higher overall resource efficiency than employing Mary phase shift keying (MPSK) while its overall resources efficiency improves with the increase of M.

Key words: MIMO-OFDM;normalization;bit error rate;bandwidth efficiency;overall resource efficiency