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Measurement-Based Performance Evaluation of MIMO Spatial Multiplexing in a Multipath-Rich Indoor Environment
| Title: | Measurement-Based Performance Evaluation of MIMO Spatial Multiplexing in a Multipath-Rich Indoor Environment |
| Authors: | Nishimoto, Hiroshi Browse this author | | Ogawa, Yasutaka Browse this author →KAKEN DB | | Nishimura, Toshihiko Browse this author →KAKEN DB | | Ohgane, Takeo Browse this author →KAKEN DB |
| Keywords: | array element pattern | | bit error rate (BER) | | channel capacity | | channel element distribution | | eigenvalue distribution | | fading correlation | | indoor channel measurement | | multiple-input multiple-output (MIMO) | | mutual coupling | | spatial multiplexing |
| Issue Date: | Dec-2007 |
| Publisher: | IEEE |
| Journal Title: | IEEE Transactions on Antennas and Propagation |
| Volume: | 55 |
| Issue: | 12 |
| Start Page: | 3677 |
| End Page: | 3689 |
| Publisher DOI: | 10.1109/TAP.2007.910303 |
| Abstract: | Multiple-input multiple-output (MIMO) spatial multiplexing that needs to separate and detect transmitted signal streams by using processing at the receiver end can increase the data rates of transmissions on independent and identically distributed (i.i.d.) channels. Such channels have been considered to exist in nonline-of-sight (NLOS) environments. However, actual communications may also be conducted in line-of-sight (LOS) environments. While an LOS component can increase the received power level, it may also cause correlated channels that make it difficult to detect the transmitted streams. In this paper, we describe the performance of 4 x 4 MIMO spatial multiplexing based on LOS and NLOS channel measurements in an indoor environment. For eight configurations of uniform linear arrays (four antenna spacings and two array orientations), we evaluated the cumulative distribution function (CDF) of the channel capacity and bit error rate performance versus transmit power, and we analyzed them in terms of antenna pattern, fading correlation, CDFs of MIMO channel elements, and CDFs of eigenvalues. Results show that, despite higher fading correlations and non i.i.d. channel characteristics, the performance of MIMO spatial multiplexing in the LOS environment is better than that in the NLOS one. However, the performance in the measured LOS environment largely depends on the MIMO configuration. |
| Rights: | ©2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. IEEE, IEEE Transactions on Antennas and Propagation, 55(12), 2007, p3677-3689 |
| Type: | article |
| URI: | http://hdl.handle.net/2115/32296 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 西本 浩
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