NDLI: On the Overhead of Interference Alignment: Training, Feedback, and Cooperation

Content Provider	IEEE Xplore Digital Library
Author	El Ayach, O. Lozano, A. Heath, R.W.
Copyright Year	2002
Abstract	Interference alignment (IA) is a cooperative transmission strategy that, under some conditions, achieves the interference channel's maximum number of degrees of freedom. Realizing IA gains, however, is contingent upon providing transmitters with sufficiently accurate channel knowledge. In this paper, we study the performance of IA in multiple-input multiple-output systems where channel knowledge is acquired through training and analog feedback. We design the training and feedback system to maximize IA's effective sum-rate: a non-asymptotic performance metric that accounts for estimation error, training and feedback overhead, and channel selectivity. We characterize effective sum-rate with overhead in relation to various parameters such as signal-to-noise ratio, Doppler spread, and feedback channel quality. A main insight from our analysis is that, by properly designing the CSI acquisition process, IA can provide good sum-rate performance in a very wide range of fading scenarios. Another observation from our work is that such overhead-aware analysis can help solve a number of practical network design problems. To demonstrate the concept of overhead-aware network design, we consider the example problem of finding the optimal number of cooperative IA users based on signal power and mobility.
Starting Page	4192
Ending Page	4203
Page Count	12
File Size	927277
File Format	PDF
ISSN	15361276
Volume Number	11
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Receivers Training Interference Transmitters Channel estimation Signal to noise ratio Fading channels analog feedback MIMO multiple access interference interference channels interference cancellation interference alignment channel estimation channel state information (CSI)
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics 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

Interference alignment with analog CSI feedback

Interference Alignment with Analog Channel State Feedback

On the noisy MIMO interference channel with CSI through analog feedback

MIMO Interference Alignment in Random Access Networks

On the Low SNR Capacity of MIMO Fading Channels With Imperfect Channel State Information

On Interference Alignment With Imperfect CSI: Characterizations of Outage Probability, Ergodic Rate and SER

Grassmannian Differential Limited Feedback for Interference Alignment

Performance of Iterative Interference Alignment with Imperfect CSI

Interference Alignment With Quantized Grassmannian Feedback in the K-User Constant MIMO Interference Channel

On the Overhead of Interference Alignment: Training, Feedback, and Cooperation

Similar Documents

Interference alignment with analog CSI feedback

Interference Alignment with Analog Channel State Feedback

On the noisy MIMO interference channel with CSI through analog feedback

MIMO Interference Alignment in Random Access Networks

On the Low SNR Capacity of MIMO Fading Channels With Imperfect Channel State Information

On Interference Alignment With Imperfect CSI: Characterizations of Outage Probability, Ergodic Rate and SER

Grassmannian Differential Limited Feedback for Interference Alignment

Performance of Iterative Interference Alignment with Imperfect CSI

Interference Alignment With Quantized Grassmannian Feedback in the K-User Constant MIMO Interference Channel

On the Overhead of Interference Alignment: Training, Feedback, and Cooperation