Erasure Decoding Method of RS-Convolutional Concatenated Code in Frequency-Hopping Spread Spectrum of Partial Band Jamming Environment.

In this paper, we propose a new method of erased concatenated code with RS-convolutional code. In the method, we make use of erasure for undecoded information when we have some errors in RS decoding. For decoding with erasure, the method is processed inner decoding and outer decoding again. After the erasure decoding, if the decoding result is better than the previous one, then we use this result. If not, use the previous one. In this paper, we use concatenated RS(63,31)-convolutional(4.1/2) code. Simulation result is compared with calculation result for performance analysis. According to the result, the proposed method has better performance than the others without erasure such that 2dB when 0.5 ≤ ρ ≤ 1 and 4dB when ρ ≤ 0.3.