Improved Modulation Schemes for Lattice-Partition-Based Downlink Non-Orthogonal Multiple Access Systems
| العنوان: | Improved Modulation Schemes for Lattice-Partition-Based Downlink Non-Orthogonal Multiple Access Systems |
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| المؤلفون: | Ting-Han Liou, Chin-Liang Wang |
| المصدر: | IEEE Wireless Communications Letters. 9:2130-2134 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Computer science, 020206 networking & telecommunications, 02 engineering and technology, Non orthogonal, medicine.disease, Topology, Noma, Control and Systems Engineering, System capacity, Lattice (order), Telecommunications link, 0202 electrical engineering, electronic engineering, information engineering, medicine, Electrical and Electronic Engineering |
| الوصف: | This letter proposes alternative modulation schemes for a two-user lattice-partition-based non-orthogonal multiple access (NOMA) system, where the NOMA transmission signal is composed of four elements from four amplitude-level groups, respectively, instead of two elements from two amplitude-level groups in the conventional method. Each user’s message is split into most significant bits (MSBs) and least significant bits (LSBs), with the MSBs modulated at one of the higher-level groups and the LSBs modulated at one of the lower-level groups to meet the NOMA principle. Both analysis and simulation results show that the proposed schemes offer higher system capacity than the conventional method. |
| تدمد: | 2162-2345 2162-2337 |
| DOI: | 10.1109/lwc.2020.3014658 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::cf3a0f5e3574e580814953b571e68f7f https://doi.org/10.1109/lwc.2020.3014658 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi...........cf3a0f5e3574e580814953b571e68f7f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21622345 21622337 |
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| DOI: | 10.1109/lwc.2020.3014658 |