Iterative Power Allocation Scheme for MIMO Systems

Hui SHI; Tetsushi ABE; Hirohito SUDA

doi:10.1093/ietcom/e89-b.3.791

Iterative Power Allocation Scheme for MIMO Systems

Hui SHI, Tetsushi ABE, Hirohito SUDA

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In closed-loop multiple-input and multiple-output space-division multiplexing (MIMO-SDM) systems, allocating power among multiple transmit data streams improves the channel capacity. However, the optimum power allocation values are not always available in closed-form. For instance, when we use transmission and reception schemes that do not transfer the MIMO channel into parallel orthogonal channels (e.g., eigen-mode SDM), the signal to interference plus noise ratio (SINR) of each data stream at the output of the receiver is not proportional to its corresponding transmit power. This feature makes it difficult to obtain the optimal closed-form power allocation value for each data stream. Thus, in this paper, we propose an iterative power allocation scheme for MIMO-SDM systems where the SINR is not proportional to the transmit power. Furthermore, we incorporate a transmit antenna selection scheme into the proposed power allocation scheme in order to attain further capacity enhancement. Computer simulation results are provided to show the effectiveness of the proposed power allocation schemes.

Publication: IEICE TRANSACTIONS on Communications Vol.E89-B No.3 pp.791-800

Publication Date: 2006/03/01

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Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e89-b.3.791

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

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Hui SHI, Tetsushi ABE, Hirohito SUDA, "Iterative Power Allocation Scheme for MIMO Systems" in IEICE TRANSACTIONS on Communications, vol. E89-B, no. 3, pp. 791-800, March 2006, doi: 10.1093/ietcom/e89-b.3.791.
Abstract: In closed-loop multiple-input and multiple-output space-division multiplexing (MIMO-SDM) systems, allocating power among multiple transmit data streams improves the channel capacity. However, the optimum power allocation values are not always available in closed-form. For instance, when we use transmission and reception schemes that do not transfer the MIMO channel into parallel orthogonal channels (e.g., eigen-mode SDM), the signal to interference plus noise ratio (SINR) of each data stream at the output of the receiver is not proportional to its corresponding transmit power. This feature makes it difficult to obtain the optimal closed-form power allocation value for each data stream. Thus, in this paper, we propose an iterative power allocation scheme for MIMO-SDM systems where the SINR is not proportional to the transmit power. Furthermore, we incorporate a transmit antenna selection scheme into the proposed power allocation scheme in order to attain further capacity enhancement. Computer simulation results are provided to show the effectiveness of the proposed power allocation schemes.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e89-b.3.791/_p

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@ARTICLE{e89-b_3_791,
author={Hui SHI, Tetsushi ABE, Hirohito SUDA, },
journal={IEICE TRANSACTIONS on Communications},
title={Iterative Power Allocation Scheme for MIMO Systems},
year={2006},
volume={E89-B},
number={3},
pages={791-800},
abstract={In closed-loop multiple-input and multiple-output space-division multiplexing (MIMO-SDM) systems, allocating power among multiple transmit data streams improves the channel capacity. However, the optimum power allocation values are not always available in closed-form. For instance, when we use transmission and reception schemes that do not transfer the MIMO channel into parallel orthogonal channels (e.g., eigen-mode SDM), the signal to interference plus noise ratio (SINR) of each data stream at the output of the receiver is not proportional to its corresponding transmit power. This feature makes it difficult to obtain the optimal closed-form power allocation value for each data stream. Thus, in this paper, we propose an iterative power allocation scheme for MIMO-SDM systems where the SINR is not proportional to the transmit power. Furthermore, we incorporate a transmit antenna selection scheme into the proposed power allocation scheme in order to attain further capacity enhancement. Computer simulation results are provided to show the effectiveness of the proposed power allocation schemes.},
keywords={},
doi={10.1093/ietcom/e89-b.3.791},
ISSN={1745-1345},
month={March},}

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TY - JOUR
TI - Iterative Power Allocation Scheme for MIMO Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 791
EP - 800
AU - Hui SHI
AU - Tetsushi ABE
AU - Hirohito SUDA
PY - 2006
DO - 10.1093/ietcom/e89-b.3.791
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E89-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2006
AB - In closed-loop multiple-input and multiple-output space-division multiplexing (MIMO-SDM) systems, allocating power among multiple transmit data streams improves the channel capacity. However, the optimum power allocation values are not always available in closed-form. For instance, when we use transmission and reception schemes that do not transfer the MIMO channel into parallel orthogonal channels (e.g., eigen-mode SDM), the signal to interference plus noise ratio (SINR) of each data stream at the output of the receiver is not proportional to its corresponding transmit power. This feature makes it difficult to obtain the optimal closed-form power allocation value for each data stream. Thus, in this paper, we propose an iterative power allocation scheme for MIMO-SDM systems where the SINR is not proportional to the transmit power. Furthermore, we incorporate a transmit antenna selection scheme into the proposed power allocation scheme in order to attain further capacity enhancement. Computer simulation results are provided to show the effectiveness of the proposed power allocation schemes.
ER -