Abstract
Nested Tail-Biting Convolutional Codes Construction for Short Packet Communications
Highlights
In 5G system, channel coding technology is divided into three scenarios: EMBB, MMTC and URLLC [1]
frame error rate (FER) performance of nested RC-Tail-biting convolutional codes (TBCCs) and LTE-RCTBCCs with code rates of 1/4, 1/6 and 1/7 were simulated over a range of Eb/N0 ranging from 0.5 dB to 5 dB, as shown in Fig. 5, Fig. 6, and Fig. 7
As we can see from these figures, the proposed nested rate-compatible TBCC (RC-TBCC) have about 0.22 dB coding gain over LTE-RC-TBCCs at FER = 10–5 for code rate 1/4
Summary
In 5G system, channel coding technology is divided into three scenarios: EMBB, MMTC and URLLC [1]. It is of great interest to design RC-TBCCs with consistent good performance for variable rates This can be achieved by constructing the low-rate codes through appending incremental bits to highrate codes, namely, by nesting the code [13]. Reference [14] proposed an algorithm to construct nested RC-TBCCs which have consistently good FER performance for all information lengths and all compatible rates. It did not consider the RC-TBCCs with fixed information length. A group of nested RC-TBCCs is designed, which have consistently good performance for fixed information length at various code rates. Case (iii): Trellis path that has never touched the allzero path
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