دورية أكاديمية
Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beams
| العنوان: | Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beams |
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| المؤلفون: | Xiaoliang Pan, Luxi Yang |
| المصدر: | EURASIP Journal on Advances in Signal Processing, Vol 2021, Iss 1, Pp 1-26 (2021) |
| بيانات النشر: | SpringerOpen, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Telecommunication LCC:Electronics |
| مصطلحات موضوعية: | Millimeter-wave, Wideband array, Squint beam, Power-domain NOMA, Telecommunication, TK5101-6720, Electronics, TK7800-8360 |
| الوصف: | Abstract This article investigates using a phased linear antenna array instead of the planar array to circumvent the problem that two frequency squint steering main beams cannot cover any two beam directions simultaneously. First, we approximate the donut-shaped main beam of the linear array by means of multiple pencil-shaped main beams of a virtual planar array for matching the steering main beam of the linear array with the multi-path sparse scattering channel model mathematically and give a method for calculating the number of antenna elements of the virtual array. Second, we cope with possible inter-user interference on a single squint main beam of the linear array in some scenarios by means of the power-domain non-orthogonal multiple access (PD-NOMA) technique, making it possible to support communication with two users on a single squint main beam at the base station (BS) side. The feasible domain of PD-NOMA is given when a single antenna is used for both the BS and the user end, assuming a two-user successive interference cancellation (SIC) decoding power ratio limit. Third, three algorithms are given for serving multi-user at the BS via squint beams of the linear array. Finally, numerical results show that the second proposed algorithm supporting PD-NOMA pairing within a single donut-shaped squint main beam significantly increases the number of simultaneous users served within a single cellular system. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1687-6180 |
| العلاقة: | https://doaj.org/toc/1687-6180Test |
| DOI: | 10.1186/s13634-021-00772-0 |
| الوصول الحر: | https://doaj.org/article/114ea49a266c4f02a491f59a859b80ddTest |
| رقم الانضمام: | edsdoj.114ea49a266c4f02a491f59a859b80dd |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 16876180 |
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| DOI: | 10.1186/s13634-021-00772-0 |