MULTIRESOLUTION MODULATION USING VARIABLE EUCLIDEAN DISTANCE RATIO AND BLIND RECEIVER
摘要
<p>A system and method are provided for generating bit log likelihood ratio (LLR) values for two-layered Quadrature Phase-Shift Keying (QPSK) turbo decoding in a wireless communications user terminal (UT). The method includes receiving a two-layered QPSK signal with an energy ratio that is unknown, but typically defined as either k1<SUP>2</SUP> or k2<SUP>2</SUP>. The method selects a mismatched energy ratio (k <SUP>2</SUP>)</p>
