NDLI: Maximizing data rate over M-input/1-output channels

Content Provider	IEEE Xplore Digital Library
Author	Zangi, K.C. Kransy, L.G.
Copyright Year	2002
Description	Author affiliation: Ericsson Res., Research Triangle Park, NC, USA (Zangi, K.C.; Kransy, L.G.)
Abstract	We focus on transmit diversity schemes for a communication system with M transmit antennas and one receive antenna (i.e. an M-input/single-output (MISO) system) where the transmitter knows all these M channels, and we derive a transmission scheme that maximizes the data rate, in an information-theoretic sense, that can be reliably transmitted over this MISO channel. An important example of the type of system we consider is a cellular wireless system on the downlink with M transmit antennas at the base station and one receive antenna at the mobile station. Our main result is the identification of the structure of the capacity-achieving transmitter. The capacity-achieving transmitter can be broken into two parts: (I) an optimal encoder for a single-input/single-output (SISO) channel, and (II) an M-dimensional matched filter. We show that the M-dimensional matched filter turns the original MISO channel into a SISO channel with exactly the same capacity as the capacity of the original MISO channel, and the 1-dimensional encoder is just the well known optimal encoder of Gallager (1966) for the SISO channel created by the M-dimensional matched filter. We also derive a closed-form expression for the channel capacity of MISO channels which is valid under a rather general set of assumptions: (1) each channel can be dispersive or flat, and (2) the additive noise at the receiver can be a Gaussian process with arbitrary power spectrum. In a typical urban environment, to achieve 1% block error rate at 4 Mbits/second, the MISO system with our transmission scheme requires 10 dB less SNR than today's SISO system.
Starting Page	938
Ending Page	942
File Size	338104
Page Count	5
File Format	PDF
ISBN	0780374843
DOI	10.1109/VTC.2002.1002626
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-05-06
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Receiving antennas Transmitters Matched filters Transmitting antennas Wireless sensor networks Downlink Mobile antennas Base stations Closed-form solution Channel capacity
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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