O'Reilly logo

Bit-Interleaved Coded Modulation: Fundamentals, Analysis and Design by Alex Alvarado, Leszek Szczecinski

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

9.3 Equivalent Labelings for Trellis Encoders

Conventionally, CM designs based on CENCs either optimize the encoder for a constellation labeled by a SP labeling (TCM), or simply connect an encoder designed for binary transmission with the BRGC (BICM). Of course, none of these approaches is optimal. Instead, a joint optimization over the labeling universe c09-math-0445 (see Section 2.5.2) and the CENC universe c09-math-0446 (see Section 2.6.1) should be performed. This problem is very difficult, even for the simplest cases. As an example, we consider the design of a trellis encoder based on an c09-math-0447 CENC with c09-math-0448 and an c09-math-0449-ary constellation. In this case, the labeling universe includes c09-math-0450 different binary labelings and the CENC universe (discarding catastrophic encoders) includes about c09-math-0451 encoders.5 An exhaustive search for this ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required