Abstract

It's well known that the improved 64-ary triangular quadrature amplitude modulation (TQAM) who provides considerable power gain over square quadrature amplitude modulation (SQAM) at the expense of slight increase in detection complexity was proposed. In this paper, we derive the general formula calculating the average energy per symbol and exact analytical expression formula for the SER in additive white Guassian Noise (AWGN) of the improved 64-ary TQAM. We also analyze the symbol error rate (SER) and the bit error rate (BER) of the improved 64-ary TQAM and compare them with the error performance of the SQAM and TQAM by simulation. Theoretically, analysis and simulation results show that the improved 64-ary TQAM can provide advantages of 0.6dB and 0.2dB in signal to noise ratio over the SQAM and the TQAM at a target symbol error rate of 10−6.

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