说明：  16QAM 2. In the following graph, each read dot indicates a complex value, where A =1. Therefore, a dot with binary value 1011 on the rightmost top has a complex value of -3+3j, and similarly a dot with 1001 has complex value of -1+3j.
(16QAM 2. In the following graph, each read dot indicates a complex value, where A =1. Therefore, a dot with binary value 1011 on the rightmost top has a complex value of-3+3j, and similarly a dot with 1001 has complex value of-1+3j. )