IEICE TRANSACTIONS on Communications
Channel Extrapolation Techniques for E-SDM System in Time-Varying Fading Environments
Summary :
Multiple-input multiple-output (MIMO) systems using eigenbeam space division multiplexing (E-SDM) perform well and have increased capacities compared with those using conventional space division multiplexing (SDM). However, channel state information (CSI) is required at a transmitter, and the performance of E-SDM systems depends much on the accuracy of the CSI at a transmitter and a receiver. In time-varying fading environments, the channel change between the transmit weight determination time and the actual data transmission time causes the system performance to degrade. To compensate for the channel error, a linear extrapolation method has been proposed for a time division duplexing system. Unfortunately, the system performance still deteriorates as the maximum Doppler frequency increases. Here, two new techniques of channel extrapolation are proposed. One is second order extrapolation, and the other is exponential extrapolation. Also, we propose maximum Doppler frequency estimation methods for exponential extrapolation. Simulation results for 4tx 4rx MIMO systems showed that using the proposed techniques, E-SDM system performs better in a higher Doppler frequency region.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E89-B No.11 pp.3083-3092
- Publication Date
- 2006/11/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1093/ietcom/e89-b.11.3083
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
Authors
Keyword
Latest Issue
Copyrights notice of machine-translated contents
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Cite this
Copy
Huu Phu BUI, Yasutaka OGAWA, Takeo OHGANE, Toshihiko NISHIMURA, "Channel Extrapolation Techniques for E-SDM System in Time-Varying Fading Environments" in IEICE TRANSACTIONS on Communications,
vol. E89-B, no. 11, pp. 3083-3092, November 2006, doi: 10.1093/ietcom/e89-b.11.3083.
Abstract: Multiple-input multiple-output (MIMO) systems using eigenbeam space division multiplexing (E-SDM) perform well and have increased capacities compared with those using conventional space division multiplexing (SDM). However, channel state information (CSI) is required at a transmitter, and the performance of E-SDM systems depends much on the accuracy of the CSI at a transmitter and a receiver. In time-varying fading environments, the channel change between the transmit weight determination time and the actual data transmission time causes the system performance to degrade. To compensate for the channel error, a linear extrapolation method has been proposed for a time division duplexing system. Unfortunately, the system performance still deteriorates as the maximum Doppler frequency increases. Here, two new techniques of channel extrapolation are proposed. One is second order extrapolation, and the other is exponential extrapolation. Also, we propose maximum Doppler frequency estimation methods for exponential extrapolation. Simulation results for 4tx 4rx MIMO systems showed that using the proposed techniques, E-SDM system performs better in a higher Doppler frequency region.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e89-b.11.3083/_p
Copy
@ARTICLE{e89-b_11_3083,
author={Huu Phu BUI, Yasutaka OGAWA, Takeo OHGANE, Toshihiko NISHIMURA, },
journal={IEICE TRANSACTIONS on Communications},
title={Channel Extrapolation Techniques for E-SDM System in Time-Varying Fading Environments},
year={2006},
volume={E89-B},
number={11},
pages={3083-3092},
abstract={Multiple-input multiple-output (MIMO) systems using eigenbeam space division multiplexing (E-SDM) perform well and have increased capacities compared with those using conventional space division multiplexing (SDM). However, channel state information (CSI) is required at a transmitter, and the performance of E-SDM systems depends much on the accuracy of the CSI at a transmitter and a receiver. In time-varying fading environments, the channel change between the transmit weight determination time and the actual data transmission time causes the system performance to degrade. To compensate for the channel error, a linear extrapolation method has been proposed for a time division duplexing system. Unfortunately, the system performance still deteriorates as the maximum Doppler frequency increases. Here, two new techniques of channel extrapolation are proposed. One is second order extrapolation, and the other is exponential extrapolation. Also, we propose maximum Doppler frequency estimation methods for exponential extrapolation. Simulation results for 4tx 4rx MIMO systems showed that using the proposed techniques, E-SDM system performs better in a higher Doppler frequency region.},
keywords={},
doi={10.1093/ietcom/e89-b.11.3083},
ISSN={1745-1345},
month={November},}
Copy
TY - JOUR
TI - Channel Extrapolation Techniques for E-SDM System in Time-Varying Fading Environments
T2 - IEICE TRANSACTIONS on Communications
SP - 3083
EP - 3092
AU - Huu Phu BUI
AU - Yasutaka OGAWA
AU - Takeo OHGANE
AU - Toshihiko NISHIMURA
PY - 2006
DO - 10.1093/ietcom/e89-b.11.3083
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E89-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2006
AB - Multiple-input multiple-output (MIMO) systems using eigenbeam space division multiplexing (E-SDM) perform well and have increased capacities compared with those using conventional space division multiplexing (SDM). However, channel state information (CSI) is required at a transmitter, and the performance of E-SDM systems depends much on the accuracy of the CSI at a transmitter and a receiver. In time-varying fading environments, the channel change between the transmit weight determination time and the actual data transmission time causes the system performance to degrade. To compensate for the channel error, a linear extrapolation method has been proposed for a time division duplexing system. Unfortunately, the system performance still deteriorates as the maximum Doppler frequency increases. Here, two new techniques of channel extrapolation are proposed. One is second order extrapolation, and the other is exponential extrapolation. Also, we propose maximum Doppler frequency estimation methods for exponential extrapolation. Simulation results for 4tx 4rx MIMO systems showed that using the proposed techniques, E-SDM system performs better in a higher Doppler frequency region.
ER -
English
