Tradeoffs between Error Performance and Decoding Complexity in Multilevel 8-PSK Codes with UEP Capabilities and Multistage Decoding
Motohiko Isaka, Robert H. Morelos-Zaragoza, M.P.C. Fossorier, Shu Wen Lin, Hideki Imai · 2000
this paper, we investigate multilevel coding and multistage decoding for satellite broadcasting with moderate decoding complexity. An unconventional signal set partitioning is used to achieve unequal error capabilities. Two possibilities are shown and analyzed for practical systems: (i) linear block component codes with near optimum decoding, (ii) punctured convolutional component codes with a common trellis structure. key words: multilevel codes, multistage decoding, tradeoffs, decoding complexity, error performance