Beam-Based Multiple Access for IRS-Aided Millimeter-Wave and Terahertz Communications
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866916079665676288 |
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| author | Jiang, Wei Schotten, Hans Dieter |
| author_facet | Jiang, Wei Schotten, Hans Dieter |
| contents | Recently, intelligent reflecting surface (IRS)-aided millimeter-wave (mmWave) and terahertz (THz) communications are considered in the wireless community. This paper aims to design a beam-based multiple-access strategy for this new paradigm. Its key idea is to make use of multiple sub-arrays over a hybrid digital-analog array to form independent beams, each of which is steered towards the desired direction to mitigate inter-user interference and suppress unwanted signal reflection. The proposed scheme combines the advantages of both orthogonal multiple access (i.e., no inter-user interference) and non-orthogonal multiple access (i.e., full time-frequency resource use). Consequently, it can substantially boost the system capacity, as verified by Monte-Carlo simulations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_01224 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Beam-Based Multiple Access for IRS-Aided Millimeter-Wave and Terahertz Communications Jiang, Wei Schotten, Hans Dieter Information Theory Signal Processing Recently, intelligent reflecting surface (IRS)-aided millimeter-wave (mmWave) and terahertz (THz) communications are considered in the wireless community. This paper aims to design a beam-based multiple-access strategy for this new paradigm. Its key idea is to make use of multiple sub-arrays over a hybrid digital-analog array to form independent beams, each of which is steered towards the desired direction to mitigate inter-user interference and suppress unwanted signal reflection. The proposed scheme combines the advantages of both orthogonal multiple access (i.e., no inter-user interference) and non-orthogonal multiple access (i.e., full time-frequency resource use). Consequently, it can substantially boost the system capacity, as verified by Monte-Carlo simulations. |
| title | Beam-Based Multiple Access for IRS-Aided Millimeter-Wave and Terahertz Communications |
| topic | Information Theory Signal Processing |
| url | https://arxiv.org/abs/2401.01224 |