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Table 1 Different mapping results of SM scheme with code over GF(\(\varvec{2^{4}}\))

From: Jointly optimized design of distributed RS-coded spatial modulation by appropriate selection at the relay

Field elements

Binary vector

\(\varvec{N}_\textbf{t}\) = 2,8-QAM

\(\varvec{N}_\textbf{t}\) = 4,4-QAM

\(\varvec{N}_\textbf{t}\)= 8,BPSK

Antenna index, modulated symbol

Antenna index, modulated symbol

Antenna index, modulated symbol

0

\((0\quad 0\quad 0\quad 0)\)

\((1,-3+i)\)

\((1,-1-i)\)

\((1,-1)\)

1

\((1\quad 0\quad 0\quad 0)\)

\((2,-3+i)\)

\((3,-1-i)\)

\((5,-1)\)

\(\alpha\)

\((0\quad 1\quad 0\quad 0)\)

\((1,3+i)\)

\((2,-1-i)\)

\((3,-1)\)

\(\alpha ^2\)

\((0\quad 0\quad 1\quad 0)\)

\((1,-1+i)\)

\((1,1-i)\)

\((2,-1)\)

\(\alpha ^3\)

\((0\quad 0\quad 0\quad 1)\)

\((1,-3-i)\)

\((1,-1+i)\)

(1, 1)

\(\alpha ^4\)

\((1\quad 1\quad 0\quad 0)\)

\((2,3+i)\)

\((4,-1-i)\)

\((7,-1)\)

\(\alpha ^5\)

\((0\quad 1\quad 1\quad 0)\)

\((1,1+i)\)

\((2,1-i)\)

\((4,-1)\)

\(\alpha ^6\)

\((0\quad 0\quad 1\quad 1)\)

\((1,-1-i)\)

\((1,1+i)\)

(2, 1)

\(\alpha ^7\)

\((1\quad 1\quad 0\quad 1)\)

\((2,3-i)\)

\((4,-1+i)\)

(7, 1)

\(\alpha ^8\)

\((1\quad 0\quad 1\quad 0)\)

\((2,-1+i)\)

\((3,1-i)\)

\((6,-1)\)

\(\alpha ^9\)

\((0\quad 1\quad 0\quad 1)\)

\((1,3-i)\)

\((2,-1+i)\)

(3, 1)

\(\alpha ^{10}\)

\((1\quad 1\quad 1\quad 0)\)

\((2,1+i)\)

\((4,1-i)\)

\((8,-1)\)

\(\alpha ^{11}\)

\((0\quad 1\quad 1\quad 1)\)

\((1,1-i)\)

\((2,1+i)\)

(4, 1)

\(\alpha ^{12}\)

\((1\quad 1\quad 1\quad 1)\)

\((2,1-i)\)

\((4,1+i)\)

(8, 1)

\(\alpha ^{13}\)

\((1\quad 0\quad 1\quad 1)\)

\((2,-1-i)\)

\((3,1+i)\)

(6, 1)

\(\alpha ^{14}\)

\((1\quad 0\quad 0\quad 1)\)

\((2,-3-i)\)

\((3,-1+i)\)

(5, 1)