NDLI: Novel interference alignment in multi-secondary users cognitive radio system

Content Provider	IEEE Xplore Digital Library
Author	Abdelhamid, B. Elsabrouty, M. Elramly, S.
Copyright Year	2012
Description	Author affiliation: Electronics and Communications Engineering, Egypt-Japan University of Science and Technology, New Borg El Arab, Egypt (Abdelhamid, B.; Elsabrouty, M.) \|\| Electronics and Communications Engineering, Ain Shams University, Cairo, Egypt (Elramly, S.)
Abstract	New interference alignment (IA) design for secondary users' transceivers in multi-secondary users cognitive radio system is presented. The proposed scheme allows opportunistic transmitters (secondary users) equipped with multiple antennas (MIMO) to use the same frequency band already occupied by the pre-existing primary user. This can be done by aligning and cancelling the interference on the primary user when local channel state information (CSI) is known. A novel closed form solution for precoding, postcoding, power allocation designed for the secondary users is derived. The proposed solution eliminates the interference of secondary users on primary user while whitening the interference caused by the primary user and other secondary users on each secondary user in the system. Numerical results prove the effectiveness of our novel IA scheme compared to other iterative methods that are used for the same purpose.
Starting Page	000785
Ending Page	000789
File Size	791250
Page Count	5
File Format	PDF
ISBN	9781467327121
ISSN	15301346
e-ISBN	9781467327138
e-ISBN	9781467327114
DOI	10.1109/ISCC.2012.6249395
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-01
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference Receivers Iterative methods Cognitive radio Resource management MIMO Radio transmitters multi-users interference alignment cognitive radio MIMO interference channel
Content Type	Text
Resource Type	Article
Subject	Signal Processing Mathematics Computer Networks and Communications Computer Science Applications Software

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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
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