Uplink-Downlink Duality Between Multiple-Access and Broadcast Channels With Compressing Relays
文献类型：期刊论文
| 作者 | Liu, Liang1; Liu, Ya-Feng2; Patil, Pratik3,4,5; Yu, Wei3 |
| 刊名 | IEEE TRANSACTIONS ON INFORMATION THEORY
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 67期号:11页码:7304-7337 |
| ISSN号 | 0018-9448 |
| 关键词 | Relays Uplink Downlink Interference Signal to noise ratio Array signal processing Encoding Uplink-downlink duality multiple-access channel broadcast channel relay channel Wyner-Ziv compression multivariate compression cloud radio access network cell-free massive multiple-input multiple-output (MIMO) |
| DOI | 10.1109/TIT.2021.3104847 |
| 英文摘要 | Uplink-downlink duality refers to the fact that under a sum-power constraint, the capacity regions of a Gaussian multiple-access channel and a Gaussian broadcast channel with Hermitian transposed channel matrices are identical. This paper generalizes this result to a cooperative cellular network, in which remote access-points are deployed as relays in serving the users under the coordination of a central processor (CP). In this model, the users and the relays are connected over noisy wireless links, while the relays and the CP are connected over noiseless but rate-limited fronthaul links. Based on a Lagrangian technique, this paper establishes a duality relationship between such a multiple-access relay channel and broadcast relay channel, under the assumption that the relays use compression-based strategies. Specifically, we show that under the same total transmit power constraint and individual fronthaul rate constraints, the achievable rate regions of the Gaussian multiple-access and broadcast relay channels are identical, when either independent compression or Wyner-Ziv and multivariate compression strategies are used. The key observations are that if the beamforming vectors at the relays are fixed, the sum-power minimization problems under the achievable rate and fronthaul constraints in both the uplink and the downlink can be transformed into either a linear programming or a semidefinite programming problem depending on the compression technique, and that the uplink and downlink problems are Lagrangian duals of each other. Moreover, the dual variables corresponding to the downlink rate constraints become the uplink powers; the dual variables corresponding to the downlink fronthaul constraints become the uplink quantization noises. This duality relationship enables an efficient algorithm for optimizing the downlink transmission and relaying strategies based on the uplink. |
| 资助项目 | Natural Sciences and Engineering Research Council (NSERC) of Canada via the Canada Research Chairs Program ; Hong Kong Polytechnic University[P0030001] ; National Natural Science Foundation of China (NSFC)[12022116] ; National Natural Science Foundation of China (NSFC)[11688101] ; National Natural Science Foundation of China (NSFC)[12021001] ; National Natural Science Foundation of China (NSFC)[11991020] ; National Natural Science Foundation of China (NSFC)[11991021] |
| WOS研究方向 | Computer Science ; Engineering |
| 语种 | 英语 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| WOS记录号 | WOS:000709078200025 |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/59437]  |
| 专题 | 中国科学院数学与系统科学研究院 |
| 通讯作者 | Liu, Ya-Feng |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Elect & Informat Engn, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing 100190, Peoples R China 3.Univ Toronto, Edward S Rogers Sr Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada 4.Carnegie Mellon Univ, Dept Stat & Data Sci, Pittsburgh, PA 15213 USA 5.Carnegie Mellon Univ, Machine Learning Dept, Pittsburgh, PA 15213 USA |
| 推荐引用方式 GB/T 7714 | Liu, Liang,Liu, Ya-Feng,Patil, Pratik,et al. Uplink-Downlink Duality Between Multiple-Access and Broadcast Channels With Compressing Relays[J]. IEEE TRANSACTIONS ON INFORMATION THEORY,2021,67(11):7304-7337. |
| APA | Liu, Liang,Liu, Ya-Feng,Patil, Pratik,&Yu, Wei.(2021).Uplink-Downlink Duality Between Multiple-Access and Broadcast Channels With Compressing Relays.IEEE TRANSACTIONS ON INFORMATION THEORY,67(11),7304-7337. |
| MLA | Liu, Liang,et al."Uplink-Downlink Duality Between Multiple-Access and Broadcast Channels With Compressing Relays".IEEE TRANSACTIONS ON INFORMATION THEORY 67.11(2021):7304-7337. |
入库方式： OAI收割
来源：数学与系统科学研究院
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