Rabin & Berdo, P.C.
Apparatus and method for transmitting and receiving signal based on QAM constellation
A transmitting apparatus for modulating data based on a predetermined 2q-QAM constellation and a receiving apparatus and method for demodulating a signal based on the predetermined 2q-QAM constellation, wherein the last q-2 bits corresponding to a quadrant of the predetermined 2q-QAM constellation are same with a gray code of a 2q-2-QAM constellation, the last q-2 bits corresponding to the remaining quadrants of the predetermined 2q-QAM constellation are determined by performing symmetric transformation for the last q-2 bits of the quadrant of the predetermined 2q-QAM around the x-axis or the y-axis.
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
H H
H04L H04L
inventional inventional
Sung woo Junhyeong Il Gyu Hoon Hee Sang Bing
Choi Kim Kim Lee Chung Hui