1. The inner code is a form of LT codes. 2. Now we have to find a polynomial-time decoding algorithm for the inner code . 3. SCCCs typically include an inner code , an outer code, and a linking interleaver. 4. Even if the enemy had known the language was Navajo, an inner code disguised military movements. 5. This is different from usual code concatenation where the inner codes are the same for each position. 6. A distinguishing feature of SCCCs is the use of a recursive convolutional code as the inner code . 7. The inner code takes the result of the pre-coding operation and generates a sequence of encoding symbols. 8. SCCC codes were further analyzed in " Serial Turbo Trellis Coded Modulation with Rate-1 Inner Code ". 9. A natural concept for a decoding algorithm for concatenated codes is to �rst decode the inner code and then the outer code. 10. In a concatenated approach, the inner code is decoded first, using a belief propagation algorithm, as used for the LT codes.
