NDLI: Interference-free regions with Han-Kobayashi scheme for M-QAM and scalar channels

Content Provider	IEEE Xplore Digital Library
Author	Saxena, P. Vazquez-Castro, M.A.
Copyright Year	2012
Description	Author affiliation: Dpt. Telecom. and Systems Engineering, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain (Saxena, P.; Vazquez-Castro, M.A.)
Abstract	For the two-user interference channel, the Han- Kobayashi (HK) scheme is known to achieve optimal rates within one bit of the capacity for Gaussian codebooks. In this paper, we propose its practical implementation based on finite M-QAM constellations. For the very strong interference regime, we derive the interference level conditions and its geometrical interpretation. For the weak interference regime, we propose a joint private/common constellation design which utilizes the interference-free constellation spaces and induces the geometrical conditions for this regime. Our results show that for the very strong interference regime, the desired signal is transmitted interference-free over a larger range of channel values than in the Gaussian case. Furthermore, for the weak interference regime, the achievable rates of the proposed scheme are compared with 1) the theoretical limit of the HK scheme when Gaussian codebooks are used [8] and 2) the orthogonal rates. In particular, the proposed scheme achieves upto 150% increase in the transmission rates as compared to the orthogonal rates.
Starting Page	211
Ending Page	218
File Size	1024683
Page Count	8
File Format	PDF
ISBN	9781467314299
ISSN	21604886
e-ISBN	9781467314305
DOI	10.1109/WiMOB.2012.6379078
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-08
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Constellation diagram Transmitters Receivers Interference channels Signal to noise ratio
Content Type	Text
Resource Type	Article

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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