NDLI: Multi-beam assisted MIMO — A novel approach to fixed beamforming

Content Provider	IEEE Xplore Digital Library
Author	Papadogiannis, A. Burr, A.G.
Copyright Year	2011
Description	Author affiliation: Communications Research Group, Department of Electronics, University of York, York, YO10 5DD, United Kingdom (Papadogiannis, A.; Burr, A.G.)
Abstract	Fourth-generation (4G) wireless networks promise the provision of unprecedented data rates. However apart from achieving a very high headline rate, it is also critical that future systems provide the capacity density of at least 1 $Gbit/s/km^{2}$ that is expected to be in demand. A promising solution that can provide the needed capacity density uses a large number of narrow beams at the base station with the aid of a Butler matrix. This fixed beamforming approach needs to be enhanced in order to provide the required capacity density as user throughput suffers from inter-beam interference because users are not likely to be located at the boresight of beams. For this purpose we propose that multiple-input multiple-output (MIMO) techniques are applied in the beam domain, resulting in a concept we may describe as multi-beam assisted MIMO (MBA-MIMO). This is shown to effectively mitigate interference and enable the provision of the required capacity density. Therefore MBA-MIMO is an attractive technology that can play a prominent role in future wireless networks beyond 4G.
Starting Page	1
Ending Page	8
File Size	251602
Page Count	8
File Format	PDF
ISBN	9781457709289
e-ISBN	9781905824250
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-15
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	IIMC
Subject Keyword	Multi-beam assisted multiple-input multiple output (MBA-MIMO) Butler matrix (BM) Truncated Shannon bound (TSB) Capacity density Array signal processing Fixed beamforming Noise Interference Throughput Vectors MIMO Antennas
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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
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