NDLI: Optimal IA design and performance analysis for MIMO

Content Provider	IET Digital Library
Author	Feng, Zhijie Liu, Weihua Han, Xueqin Zhang, Zhe Chen, Xueyan
Abstract	Both multiple-input multiple-output (MIMO) and orthogonal frequency division multiplexing (OFDM) are key technologies for the fifth-generation mobile communication systems. However, interference is one of the critical challenges in MIMO–OFDM systems that degrades the overall performance. In this study, a novel interference alignment (IA) design-based diagonal-block channel charter to mitigate the interference for MIMO–OFDM systems is proposed. The proposed IA scheme can be used in physical layer security, e.g. anti-location. Based on the diagonal-block charter of the channel matrix, the optimal degree of freedom, i.e. the maximum number of multiple data streams concurrently transmitted interference-free can be achieved by IA. Correspondingly, the authors present the closed-form IA design scheme for some special scenarios, and two iterative IA ones for general scenarios in detail. Furthermore, the performance analysis of IA systems with diagonal-block channel error is provided, where the imperfect channel state information case is considered. The simulation results show that the IA design based on the diagonal-block channel can improve the sum-rate performance effectively, by sufficiently exploiting the spatial and frequency resources.
Starting Page	1603
Ending Page	1609
Page Count	7
ISSN	17518628
Volume Number	14
e-ISSN	17518636
Issue Number	Issue 10, Jun (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/14/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2019.1287
Journal	IET Communications
Publisher Date	2020-03-17
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Closed-form IA Design Scheme Diagonal-block Channel Error Diagonal-block Charter Electromagnetic Compatibility Fifth-generation Mobile Communication System IA Scheme IA System Imperfect Channel State Information Case Interference Interference Alignment Design-based Diagonal-block Channel Charter Interference-free Iterative IA Ones MIMO Communication MIMO–OFDM Systems Modulation And Coding Method Multiple Data Streams OFDM Modulation Optimal IA Design Performance Analysis Radio Frequency Interference Radio Link And Equipment Wireless Channel
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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