Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/107088
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Electrical and Electronic Engineering | - |
dc.creator | Zhang, S | - |
dc.creator | Zhang, R | - |
dc.date.accessioned | 2024-06-13T01:03:48Z | - |
dc.date.available | 2024-06-13T01:03:48Z | - |
dc.identifier.issn | 0090-6778 | - |
dc.identifier.uri | http://hdl.handle.net/10397/107088 | - |
dc.language.iso | en | en_US |
dc.publisher | Institute of Electrical and Electronics Engineers | en_US |
dc.rights | © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | en_US |
dc.rights | The following publication S. Zhang and R. Zhang, "Intelligent Reflecting Surface Aided Multi-User Communication: Capacity Region and Deployment Strategy," in IEEE Transactions on Communications, vol. 69, no. 9, pp. 5790-5806, Sept. 2021 is available at https://doi.org/10.1109/TCOMM.2021.3079128. | en_US |
dc.subject | Broadcast channel (BC) | en_US |
dc.subject | Capacity region | en_US |
dc.subject | Intelligent reflecting surface (IRS) | en_US |
dc.subject | IRS deployment | en_US |
dc.subject | Multiple-access channel (MAC) | en_US |
dc.title | Intelligent reflecting surface aided multi-user communication : capacity region and deployment strategy | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 5790 | - |
dc.identifier.epage | 5806 | - |
dc.identifier.volume | 69 | - |
dc.identifier.issue | 9 | - |
dc.identifier.doi | 10.1109/TCOMM.2021.3079128 | - |
dcterms.abstract | Intelligent reflecting surface (IRS) is a new promising technology that is able to reconfigure the wireless propagation channel via smart and passive signal reflection. In this paper, we investigate the capacity region of a two-user communication network with one access point (AP) aided by M IRS elements for enhancing the user-AP channels, where the IRS incurs negligible delay, thus the user-AP channels via the IRS follow the classic discrete memoryless channel model. In particular, we consider two practical IRS deployment strategies that lead to different effective channels between the users and AP, namely, the distributed deployment where the M elements form two IRSs, each deployed in the vicinity of one user, versus the centralized deployment where all the M elements are deployed in the vicinity of the AP. First, we consider the uplink multiple-access channel (MAC) and derive the capacity/achievable rate regions for both deployment strategies under different multiple access schemes. It is shown that the centralized deployment generally outperforms the distributed deployment under symmetric channel setups in terms of achievable user rates. Next, we extend the results to the downlink broadcast channel (BC) by leveraging the celebrated uplink-downlink (or MAC-BC) duality framework, and show that the superior rate performance of centralized over distributed deployment also holds. Numerical results are presented that validate our analysis, and reveal new and useful insights for optimal IRS deployment in wireless networks. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | IEEE transactions on communications, Sept. 2021, v. 69, no. 9, p. 5790-5806 | - |
dcterms.isPartOf | IEEE transactions on communications | - |
dcterms.issued | 2021-09 | - |
dc.identifier.scopus | 2-s2.0-85105864241 | - |
dc.identifier.eissn | 1558-0857 | - |
dc.description.validate | 202403 bckw | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | EIE-0015 | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | National University of Singapore | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 52968520 | en_US |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
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File | Description | Size | Format | |
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Zhang_Intelligent_Reflecting_Surface.pdf | Pre-Published version | 595.82 kB | Adobe PDF | View/Open |
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