CaltechAUTHORS
  A Caltech Library Service

Analysis of multiple antenna wireless links at low SNR

Rao, Chaitanya and Hassibi, Babak (2003) Analysis of multiple antenna wireless links at low SNR. In: IEEE International Symposium on Information Theory, 2003. Proceedings. IEEE , Piscataway, NJ, p. 468. ISBN 0780377281. https://resolver.caltech.edu/CaltechAUTHORS:20190308-135958304

[img] PDF - Published Version
See Usage Policy.

115kB

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20190308-135958304

Abstract

In the low signal-to-noise (SNR) regime when the channel is not known to both transmitter and receiver, we show that the capacity of a multiple antenna Rayleigh fading link is asymptotically quadratic in the SNR for all practical input distributions. This is much less than the known channel case where it exhibits a linear growth in the SNR. Under various signaling constraints we show that mutual information is maximized by using a single transmit antenna. Also sending training symbols offers no advantage at low SNR.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/isit.2003.1228485DOIArticle
Additional Information:© 2003 IEEE. This work supported in part by the National Science Foundation under grant no. CCR-0133818, by the office of Naval Research under grant no. N00014-02-1-0578, and by Caltech's Lee Center for Advanced Networking.
Funders:
Funding AgencyGrant Number
NSFCCR-0133818
Office of Naval Research (ONR)N00014-02-1-0578
Caltech Lee Center for Advanced NetworkingUNSPECIFIED
DOI:10.1109/isit.2003.1228485
Record Number:CaltechAUTHORS:20190308-135958304
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190308-135958304
Official Citation:Chaitanya Rao and B. Hassibi, "Analysis of multiple antenna wireless links at low SNR," IEEE International Symposium on Information Theory, 2003. Proceedings., Yokohama, Japan, 2003, pp. 468-. doi: 10.1109/ISIT.2003.1228485
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:93661
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:08 Mar 2019 22:33
Last Modified:16 Nov 2021 16:59

Repository Staff Only: item control page