Dynamic Spectrum Management: A Complete Complexity Characterization
文献类型：期刊论文
| 作者 | Liu, Ya-Feng
|
| 刊名 | IEEE TRANSACTIONS ON INFORMATION THEORY
 |
| 出版日期 | 2017 |
| 卷号 | 63期号:1页码:392-403 |
| 关键词 | Complexity theory multi-carrier communication system spectrum management strong NP-hardness |
| ISSN号 | 0018-9448 |
| DOI | 10.1109/TIT.2016.2623662 |
| 英文摘要 | Consider a multi-user multi-carrier communication system where multiple users share multiple discrete subcarriers. To achieve high spectrum efficiency, the users in the system must choose their transmit power dynamically in response to fast channel fluctuations. Assuming perfect channel state information, two formulations for the spectrum management (power control) problem are considered in this paper: the first is to minimize the total transmission power subject to all users' transmission data rate constraints, and the second is to maximize the min-rate utility subject to individual power constraints at each user. It is known in the literature that both formulations of the problem are polynomial time solvable when the number of subcarriers is one and strongly NP-hard when the number of subcarriers are greater than or equal to three. However, the complexity characterization of the problem when the number of subcarriers is two has been missing for a long time. This paper answers this long-standing open question: both formulations of the problem are strongly NP-hard when the number of subcarriers is two. |
| 语种 | 英语 |
| WOS记录号 | WOS:000391740000026 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/24586]  |
| 专题 | 计算数学与科学工程计算研究所 |
| 通讯作者 | Liu, Ya-Feng |
| 作者单位 | Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Ya-Feng. Dynamic Spectrum Management: A Complete Complexity Characterization[J]. IEEE TRANSACTIONS ON INFORMATION THEORY,2017,63(1):392-403. |
| APA | Liu, Ya-Feng.(2017).Dynamic Spectrum Management: A Complete Complexity Characterization.IEEE TRANSACTIONS ON INFORMATION THEORY,63(1),392-403. |
| MLA | Liu, Ya-Feng."Dynamic Spectrum Management: A Complete Complexity Characterization".IEEE TRANSACTIONS ON INFORMATION THEORY 63.1(2017):392-403. |
入库方式： OAI收割
来源：数学与系统科学研究院
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