The transmission characterized by ultra reliable and low latency requirements presents a significant challenge in the future networks, leading to an increasing interest in powerful short channel codes. In this letter, we consider the concatenation of a tail-biting convolutional code (TBCC) with an index modulation (IM) mapper as a promising scheme. Bit-interleaved coded modulation with iterative decoding (BICM-ID) is employed in the TBCC-IM and a modified IM mapping arrangement is developed to improve the error-correction performance. Experimental results show that the implemented TBCC-IM scheme can nearly approach the random coding union (RCU) bound with reasonable complexity.
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Dong et al. (2024) studied this question.
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