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Table 2 The code-mapping table for Example 1

From: An adaptive transmission protocol for exploiting diversity and multiplexing gains in wireless relaying networks

  R 1 R 2 R 3 R 4 θ
\(\mathcal { X}_{{1}}\) 0 (00) 1 2 0 0 0
  1 (01) 0 0 1 2  
\(\mathcal {{X}}_{{2}}\) 2 (10) 0 1 2 0 0.96
  3 (11) 2 0 0 1  
  1. Star-QAM parameters: a = 0.8245 and ϕ= 0.7854.