Directional random scattering MIMO channels: Entropy analysis and capacity optimization

Parastoo Sadeghi; Thushara D. Abhayapala; Rodney A. Kennedys

doi:10.1109/ICC.2006.254933

Directional random scattering MIMO channels: Entropy analysis and capacity optimization

Parastoo Sadeghi^*, Thushara D. Abhayapala, Rodney A. Kennedys

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Citations (Scopus)

Abstract

In this paper, we study the effect of directional random scattering on the capacity of multiple-input multiple-output (MIMO) systems. First, we use the spatial decomposition of the MIMO channel matrix to analyze the randomness (entropy) of directional scattering. The analysis shows that directional scatterers (with at least a null in the angular power spectrum) will no longer be random when the receiver observation radius is sufficiently large. Therefore, directional scattering limits the expected linear increase of MIMO capacity with increasing the number of antennas. Second, we consider the effect of receiver antenna arrangement (positions) on the capacity of MIMO systems. For any random scatterer with a given angular power spectrum, we show that it is possible to choose the receiver antenna arrangement with the optimum whitening of the MIMO channel matrix that, in turn, maximizes MIMO channel capacity.

Original language	English
Title of host publication	2006 IEEE International Conference on Communications, ICC 2006
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1331-1336
Number of pages	6
ISBN (Print)	1424403553, 9781424403554
DOIs	https://doi.org/10.1109/ICC.2006.254933
Publication status	Published - 2006
Event	2006 IEEE International Conference on Communications, ICC 2006 - Istanbul, Turkey Duration: 11 Jul 2006 → 15 Jul 2006

Publication series

Name	IEEE International Conference on Communications
Volume	3
ISSN (Print)	0536-1486

Conference

Conference	2006 IEEE International Conference on Communications, ICC 2006
Country/Territory	Turkey
City	Istanbul
Period	11/07/06 → 15/07/06

Access to Document

10.1109/ICC.2006.254933

Cite this

Sadeghi, P., Abhayapala, T. D., & Kennedys, R. A. (2006). Directional random scattering MIMO channels: Entropy analysis and capacity optimization. In 2006 IEEE International Conference on Communications, ICC 2006 (pp. 1331-1336). Article 4024325 (IEEE International Conference on Communications; Vol. 3). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC.2006.254933

@inproceedings{e03d6a565d3341efa0e28c104e872304,

title = "Directional random scattering MIMO channels: Entropy analysis and capacity optimization",

abstract = "In this paper, we study the effect of directional random scattering on the capacity of multiple-input multiple-output (MIMO) systems. First, we use the spatial decomposition of the MIMO channel matrix to analyze the randomness (entropy) of directional scattering. The analysis shows that directional scatterers (with at least a null in the angular power spectrum) will no longer be random when the receiver observation radius is sufficiently large. Therefore, directional scattering limits the expected linear increase of MIMO capacity with increasing the number of antennas. Second, we consider the effect of receiver antenna arrangement (positions) on the capacity of MIMO systems. For any random scatterer with a given angular power spectrum, we show that it is possible to choose the receiver antenna arrangement with the optimum whitening of the MIMO channel matrix that, in turn, maximizes MIMO channel capacity.",

author = "Parastoo Sadeghi and Abhayapala, {Thushara D.} and Kennedys, {Rodney A.}",

year = "2006",

doi = "10.1109/ICC.2006.254933",

language = "English",

isbn = "1424403553",

series = "IEEE International Conference on Communications",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "1331--1336",

booktitle = "2006 IEEE International Conference on Communications, ICC 2006",

address = "United States",

note = "2006 IEEE International Conference on Communications, ICC 2006 ; Conference date: 11-07-2006 Through 15-07-2006",

}

Sadeghi, P, Abhayapala, TD & Kennedys, RA 2006, Directional random scattering MIMO channels: Entropy analysis and capacity optimization. in 2006 IEEE International Conference on Communications, ICC 2006., 4024325, IEEE International Conference on Communications, vol. 3, Institute of Electrical and Electronics Engineers Inc., pp. 1331-1336, 2006 IEEE International Conference on Communications, ICC 2006, Istanbul, Turkey, 11/07/06. https://doi.org/10.1109/ICC.2006.254933

Directional random scattering MIMO channels: Entropy analysis and capacity optimization. / Sadeghi, Parastoo; Abhayapala, Thushara D.; Kennedys, Rodney A.
2006 IEEE International Conference on Communications, ICC 2006. Institute of Electrical and Electronics Engineers Inc., 2006. p. 1331-1336 4024325 (IEEE International Conference on Communications; Vol. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Directional random scattering MIMO channels

T2 - 2006 IEEE International Conference on Communications, ICC 2006

AU - Sadeghi, Parastoo

AU - Abhayapala, Thushara D.

AU - Kennedys, Rodney A.

PY - 2006

Y1 - 2006

N2 - In this paper, we study the effect of directional random scattering on the capacity of multiple-input multiple-output (MIMO) systems. First, we use the spatial decomposition of the MIMO channel matrix to analyze the randomness (entropy) of directional scattering. The analysis shows that directional scatterers (with at least a null in the angular power spectrum) will no longer be random when the receiver observation radius is sufficiently large. Therefore, directional scattering limits the expected linear increase of MIMO capacity with increasing the number of antennas. Second, we consider the effect of receiver antenna arrangement (positions) on the capacity of MIMO systems. For any random scatterer with a given angular power spectrum, we show that it is possible to choose the receiver antenna arrangement with the optimum whitening of the MIMO channel matrix that, in turn, maximizes MIMO channel capacity.

AB - In this paper, we study the effect of directional random scattering on the capacity of multiple-input multiple-output (MIMO) systems. First, we use the spatial decomposition of the MIMO channel matrix to analyze the randomness (entropy) of directional scattering. The analysis shows that directional scatterers (with at least a null in the angular power spectrum) will no longer be random when the receiver observation radius is sufficiently large. Therefore, directional scattering limits the expected linear increase of MIMO capacity with increasing the number of antennas. Second, we consider the effect of receiver antenna arrangement (positions) on the capacity of MIMO systems. For any random scatterer with a given angular power spectrum, we show that it is possible to choose the receiver antenna arrangement with the optimum whitening of the MIMO channel matrix that, in turn, maximizes MIMO channel capacity.

UR - http://www.scopus.com/inward/record.url?scp=42549146626&partnerID=8YFLogxK

U2 - 10.1109/ICC.2006.254933

DO - 10.1109/ICC.2006.254933

M3 - Conference contribution

SN - 1424403553

SN - 9781424403554

T3 - IEEE International Conference on Communications

SP - 1331

EP - 1336

BT - 2006 IEEE International Conference on Communications, ICC 2006

PB - Institute of Electrical and Electronics Engineers Inc.

Y2 - 11 July 2006 through 15 July 2006

ER -

Directional random scattering MIMO channels: Entropy analysis and capacity optimization

Abstract

Publication series

Conference

Access to Document

Other files and links

Fingerprint

Cite this