The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Teknologi radio impuls jalur ultra lebar (UWB-IR) dan sistem berbilang input berbilang output (MIMO) telah menarik minat berkenaan penggunaannya dalam komunikasi radio berkelajuan tinggi generasi akan datang. Kami telah mengkaji penggunaan sistem jalur ultra lebar MIMO (MIMO-UWB) untuk membolehkan komunikasi radio berkelajuan tinggi. Kami menggunakan penyamaan domain frekuensi berdasarkan kriteria ralat min kuasa dua minimum (MMSE-FDE) untuk mengurangkan gangguan intersimbol (ISI) dan gangguan saluran bersama (CCI) dalam sistem MIMO-UWB. Oleh kerana sistem UWB dijangka akan digunakan untuk komunikasi tanpa wayar jarak dekat, sistem MIMO-UWB biasanya akan beroperasi dalam persekitaran line-of-sight (LOS) dan gelombang terus akan diterima di bahagian penerima. Gelombang langsung mempunyai kuasa tinggi dan menyebabkan korelasi yang tinggi antara antena dalam persekitaran sedemikian. Oleh itu, adalah difikirkan bahawa gelombang langsung akan menjejaskan prestasi penapisan ruang dan teknik penyamaan yang digunakan untuk meningkatkan pengesanan isyarat. Untuk mengkaji kebolehlaksanaan sistem MIMO-UWB, kami menjalankan pengukuran penyebaran sistem MIMO-UWB dalam persekitaran LOS. Daripada pengukuran, kami mendapati bahawa masa ketibaan gelombang langsung dari antena pemancar yang berbeza bergantung pada konfigurasi MIMO. Kerana kita boleh memperoleh kuasa tinggi daripada gelombang langsung, penerimaan gelombang langsung adalah penting untuk memaksimumkan prestasi penghantaran. Dalam kertas kerja ini, kami membentangkan hasil pengukuran kami dan mencadangkan cara untuk meningkatkan prestasi menggunakan kaedah kawalan pemasaan penghantaran (Tx) dan terima (Rx). Kami menilai prestasi kadar ralat bit (BER) untuk bentuk kawalan masa ini menggunakan data saluran yang diukur.
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Salinan
Masaki TAKANASHI, Toshihiko NISHIMURA, Yasutaka OGAWA, Takeo OHGANE, "Performance Evaluation of MIMO-UWB Systems Using Measured Propagation Data and Proposal of Timing Control Scheme in LOS Environments" in IEICE TRANSACTIONS on Communications,
vol. E92-B, no. 8, pp. 2698-2707, August 2009, doi: 10.1587/transcom.E92.B.2698.
Abstract: Ultrawide-band impulse radio (UWB-IR) technology and multiple-input multiple-output (MIMO) systems have attracted interest regarding their use in next-generation high-speed radio communication. We have studied the use of MIMO ultrawide-band (MIMO-UWB) systems to enable higher-speed radio communication. We used frequency-domain equalization based on the minimum mean square error criterion (MMSE-FDE) to reduce intersymbol interference (ISI) and co-channel interference (CCI) in MIMO-UWB systems. Because UWB systems are expected to be used for short-range wireless communication, MIMO-UWB systems will usually operate in line-of-sight (LOS) environments and direct waves will be received at the receiver side. Direct waves have high power and cause high correlations between antennas in such environments. Thus, it is thought that direct waves will adversely affect the performance of spatial filtering and equalization techniques used to enhance signal detection. To examine the feasibility of MIMO-UWB systems, we conducted MIMO-UWB system propagation measurements in LOS environments. From the measurements, we found that the arrival time of direct waves from different transmitting antennas depends on the MIMO configuration. Because we can obtain high power from the direct waves, direct wave reception is critical for maximizing transmission performance. In this paper, we present our measurement results, and propose a way to improve performance using a method of transmit (Tx) and receive (Rx) timing control. We evaluate the bit error rate (BER) performance for this form of timing control using measured channel data.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E92.B.2698/_p
Salinan
@ARTICLE{e92-b_8_2698,
author={Masaki TAKANASHI, Toshihiko NISHIMURA, Yasutaka OGAWA, Takeo OHGANE, },
journal={IEICE TRANSACTIONS on Communications},
title={Performance Evaluation of MIMO-UWB Systems Using Measured Propagation Data and Proposal of Timing Control Scheme in LOS Environments},
year={2009},
volume={E92-B},
number={8},
pages={2698-2707},
abstract={Ultrawide-band impulse radio (UWB-IR) technology and multiple-input multiple-output (MIMO) systems have attracted interest regarding their use in next-generation high-speed radio communication. We have studied the use of MIMO ultrawide-band (MIMO-UWB) systems to enable higher-speed radio communication. We used frequency-domain equalization based on the minimum mean square error criterion (MMSE-FDE) to reduce intersymbol interference (ISI) and co-channel interference (CCI) in MIMO-UWB systems. Because UWB systems are expected to be used for short-range wireless communication, MIMO-UWB systems will usually operate in line-of-sight (LOS) environments and direct waves will be received at the receiver side. Direct waves have high power and cause high correlations between antennas in such environments. Thus, it is thought that direct waves will adversely affect the performance of spatial filtering and equalization techniques used to enhance signal detection. To examine the feasibility of MIMO-UWB systems, we conducted MIMO-UWB system propagation measurements in LOS environments. From the measurements, we found that the arrival time of direct waves from different transmitting antennas depends on the MIMO configuration. Because we can obtain high power from the direct waves, direct wave reception is critical for maximizing transmission performance. In this paper, we present our measurement results, and propose a way to improve performance using a method of transmit (Tx) and receive (Rx) timing control. We evaluate the bit error rate (BER) performance for this form of timing control using measured channel data.},
keywords={},
doi={10.1587/transcom.E92.B.2698},
ISSN={1745-1345},
month={August},}
Salinan
TY - JOUR
TI - Performance Evaluation of MIMO-UWB Systems Using Measured Propagation Data and Proposal of Timing Control Scheme in LOS Environments
T2 - IEICE TRANSACTIONS on Communications
SP - 2698
EP - 2707
AU - Masaki TAKANASHI
AU - Toshihiko NISHIMURA
AU - Yasutaka OGAWA
AU - Takeo OHGANE
PY - 2009
DO - 10.1587/transcom.E92.B.2698
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E92-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2009
AB - Ultrawide-band impulse radio (UWB-IR) technology and multiple-input multiple-output (MIMO) systems have attracted interest regarding their use in next-generation high-speed radio communication. We have studied the use of MIMO ultrawide-band (MIMO-UWB) systems to enable higher-speed radio communication. We used frequency-domain equalization based on the minimum mean square error criterion (MMSE-FDE) to reduce intersymbol interference (ISI) and co-channel interference (CCI) in MIMO-UWB systems. Because UWB systems are expected to be used for short-range wireless communication, MIMO-UWB systems will usually operate in line-of-sight (LOS) environments and direct waves will be received at the receiver side. Direct waves have high power and cause high correlations between antennas in such environments. Thus, it is thought that direct waves will adversely affect the performance of spatial filtering and equalization techniques used to enhance signal detection. To examine the feasibility of MIMO-UWB systems, we conducted MIMO-UWB system propagation measurements in LOS environments. From the measurements, we found that the arrival time of direct waves from different transmitting antennas depends on the MIMO configuration. Because we can obtain high power from the direct waves, direct wave reception is critical for maximizing transmission performance. In this paper, we present our measurement results, and propose a way to improve performance using a method of transmit (Tx) and receive (Rx) timing control. We evaluate the bit error rate (BER) performance for this form of timing control using measured channel data.
ER -