Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beams
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 mean...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-08-01
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| Series: | EURASIP Journal on Advances in Signal Processing |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s13634-021-00772-0 |
| _version_ | 1818956070407634944 |
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| author | Xiaoliang Pan Luxi Yang |
| author_facet | Xiaoliang Pan Luxi Yang |
| author_sort | Xiaoliang Pan |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-20T10:48:07Z |
| format | Article |
| id | doaj.art-114ea49a266c4f02a491f59a859b80dd |
| institution | Directory Open Access Journal |
| issn | 1687-6180 |
| language | English |
| last_indexed | 2024-12-20T10:48:07Z |
| publishDate | 2021-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-114ea49a266c4f02a491f59a859b80dd2022-12-21T19:43:20ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61802021-08-012021112610.1186/s13634-021-00772-0Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beamsXiaoliang Pan0Luxi Yang1School of Information Science and Engineering, Southeast UniversitySchool of Information Science and Engineering, Southeast UniversityAbstract 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.https://doi.org/10.1186/s13634-021-00772-0Millimeter-waveWideband arraySquint beamPower-domain NOMA |
| spellingShingle | Xiaoliang Pan Luxi Yang Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beams EURASIP Journal on Advances in Signal Processing Millimeter-wave Wideband array Squint beam Power-domain NOMA |
| title | Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beams |
| title_full | Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beams |
| title_fullStr | Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beams |
| title_full_unstemmed | Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beams |
| title_short | Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beams |
| title_sort | downlink multi user algorithms for millimeter wave wideband linear arrays on pd noma based squint steering beams |
| topic | Millimeter-wave Wideband array Squint beam Power-domain NOMA |
| url | https://doi.org/10.1186/s13634-021-00772-0 |
| work_keys_str_mv | AT xiaoliangpan downlinkmultiuseralgorithmsformillimeterwavewidebandlineararraysonpdnomabasedsquintsteeringbeams AT luxiyang downlinkmultiuseralgorithmsformillimeterwavewidebandlineararraysonpdnomabasedsquintsteeringbeams |