A Bit-Filp Joint Algorithm of Polar-SCMA Systems for mMTC
The conflict between limited spectrum resources and the need for massive machine-type communications (mMTC) is becoming more significant. To address these challenges, Sparse Code Multiple Access (SCMA) has emerged as a promising solution for mMTC in 5G. SCMA allows many users to share time and frequ...
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| Vydáno v: | 2023 IEEE IAS Global Conference on Emerging Technologies (GlobConET) s. 1 - 6 |
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19.05.2023
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| Abstract | The conflict between limited spectrum resources and the need for massive machine-type communications (mMTC) is becoming more significant. To address these challenges, Sparse Code Multiple Access (SCMA) has emerged as a promising solution for mMTC in 5G. SCMA allows many users to share time and frequency resources, increasing spectral efficiency and receiving increased attention in the mMTC domain. As a control channel coding scheme in 5G communication systems, polar codes (PC) offer dependable data transmission capabilities. This paper presents a joint algorithm for an uplink PC-SCMA receiver that yields a reasonable block error rate (BLER) performance and an overload rate of 150% for mMTC. Generally, the previous error bit leads to much decoding error propagation in the following information bits for the iterative algorithm. We propose a bit-flip-assisted joint iterative detection decoding (BF-JIDD) algorithm for the error propagation problem in JIDD. Based on the simulation results, it can be concluded that the BF-JIDD algorithm outperforms the JIDD algorithm in terms of BLER performance. |
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| AbstractList | The conflict between limited spectrum resources and the need for massive machine-type communications (mMTC) is becoming more significant. To address these challenges, Sparse Code Multiple Access (SCMA) has emerged as a promising solution for mMTC in 5G. SCMA allows many users to share time and frequency resources, increasing spectral efficiency and receiving increased attention in the mMTC domain. As a control channel coding scheme in 5G communication systems, polar codes (PC) offer dependable data transmission capabilities. This paper presents a joint algorithm for an uplink PC-SCMA receiver that yields a reasonable block error rate (BLER) performance and an overload rate of 150% for mMTC. Generally, the previous error bit leads to much decoding error propagation in the following information bits for the iterative algorithm. We propose a bit-flip-assisted joint iterative detection decoding (BF-JIDD) algorithm for the error propagation problem in JIDD. Based on the simulation results, it can be concluded that the BF-JIDD algorithm outperforms the JIDD algorithm in terms of BLER performance. |
| Author | Wei, Qiao Wenping, Ge Shiwei, Zhang Yin, Sun |
| Author_xml | – sequence: 1 givenname: Qiao surname: Wei fullname: Wei, Qiao email: 2922055880@qq.com organization: Xinjiang University,Key Laboratory of Signal Detection and Processing, College of Information Science and Engineering,Urumqi,China – sequence: 2 givenname: Ge surname: Wenping fullname: Wenping, Ge email: wenpingge@xju.edu.cn organization: Xinjiang University,Key Laboratory of Signal Detection and Processing, College of Information Science and Engineering,Urumqi,China – sequence: 3 givenname: Zhang surname: Shiwei fullname: Shiwei, Zhang email: 373230958@qq.com organization: Xinjiang University,Key Laboratory of Signal Detection and Processing, College of Information Science and Engineering,Urumqi,China – sequence: 4 givenname: Sun surname: Yin fullname: Yin, Sun email: 1643165342@qq.com organization: Xinjiang University,Key Laboratory of Signal Detection and Processing, College of Information Science and Engineering,Urumqi,China |
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| Snippet | The conflict between limited spectrum resources and the need for massive machine-type communications (mMTC) is becoming more significant. To address these... |
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| SubjectTerms | 5G mobile communication bit-flip Codes joint iterative detection decoding polar codes Reliability Scalability Simulation sparse code multiple access Spectral efficiency Time-frequency analysis |
| Title | A Bit-Filp Joint Algorithm of Polar-SCMA Systems for mMTC |
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