Abstract
Visible light communication (VLC) using optical sources which can be simultaneously utilized for illumination and communication is currently an attractive option for wireless personal area network. Improving the data rate in optical wireless communication system is challenging due to the limited bandwidth of the optical sources. In this paper, we design the singular value decomposition (SVD)- based multiplexing multiple-input multiple-output (MIMO) system to support two data streams in optical wireless channels. Noting that the conventional allocation method in radio frequency (RF) MIMO channels cannot be applied directly to the optical intensity channels, we propose a novel method to allocate the optical power, the offset value and the modulation size for maximum sum rate under the constraints of the nonnegativity of the modulated signals, the aggregate optical power and the bit error rate (BER) requirement. The simulation results show that the proposed allocation method gives the better performance than the method to allocate the optical power equally for each data stream.
| Original language | English |
|---|---|
| Title of host publication | IWCMC 2011 - 7th International Wireless Communications and Mobile Computing Conference |
| Pages | 141-146 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2011 Sep 12 |
| Event | 7th International Wireless Communications and Mobile Computing Conference, IWCMC 2011 - Istanbul, Turkey Duration: 2011 Jul 4 → 2011 Jul 8 |
Other
| Other | 7th International Wireless Communications and Mobile Computing Conference, IWCMC 2011 |
|---|---|
| Country | Turkey |
| City | Istanbul |
| Period | 11/7/4 → 11/7/8 |
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Keywords
- Adaptive modulation
- IM-DD
- multi-level PAM
- Optical wireless MIMO
- SVD
- VLC
ASJC Scopus subject areas
- Computer Networks and Communications
- Communication
Cite this
On the power and offset allocation for rate adaptation of spatial multiplexing in optical wireless MIMO channels. / Park, Ki Hong; Ko, Young-Chai; Alouini, Mohamed Slim.
IWCMC 2011 - 7th International Wireless Communications and Mobile Computing Conference. 2011. p. 141-146 5982521.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - On the power and offset allocation for rate adaptation of spatial multiplexing in optical wireless MIMO channels
AU - Park, Ki Hong
AU - Ko, Young-Chai
AU - Alouini, Mohamed Slim
PY - 2011/9/12
Y1 - 2011/9/12
N2 - Visible light communication (VLC) using optical sources which can be simultaneously utilized for illumination and communication is currently an attractive option for wireless personal area network. Improving the data rate in optical wireless communication system is challenging due to the limited bandwidth of the optical sources. In this paper, we design the singular value decomposition (SVD)- based multiplexing multiple-input multiple-output (MIMO) system to support two data streams in optical wireless channels. Noting that the conventional allocation method in radio frequency (RF) MIMO channels cannot be applied directly to the optical intensity channels, we propose a novel method to allocate the optical power, the offset value and the modulation size for maximum sum rate under the constraints of the nonnegativity of the modulated signals, the aggregate optical power and the bit error rate (BER) requirement. The simulation results show that the proposed allocation method gives the better performance than the method to allocate the optical power equally for each data stream.
AB - Visible light communication (VLC) using optical sources which can be simultaneously utilized for illumination and communication is currently an attractive option for wireless personal area network. Improving the data rate in optical wireless communication system is challenging due to the limited bandwidth of the optical sources. In this paper, we design the singular value decomposition (SVD)- based multiplexing multiple-input multiple-output (MIMO) system to support two data streams in optical wireless channels. Noting that the conventional allocation method in radio frequency (RF) MIMO channels cannot be applied directly to the optical intensity channels, we propose a novel method to allocate the optical power, the offset value and the modulation size for maximum sum rate under the constraints of the nonnegativity of the modulated signals, the aggregate optical power and the bit error rate (BER) requirement. The simulation results show that the proposed allocation method gives the better performance than the method to allocate the optical power equally for each data stream.
KW - Adaptive modulation
KW - IM-DD
KW - multi-level PAM
KW - Optical wireless MIMO
KW - SVD
KW - VLC
UR - http://www.scopus.com/inward/record.url?scp=80052437293&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80052437293&partnerID=8YFLogxK
U2 - 10.1109/IWCMC.2011.5982521
DO - 10.1109/IWCMC.2011.5982521
M3 - Conference contribution
AN - SCOPUS:80052437293
SN - 9781424495399
SP - 141
EP - 146
BT - IWCMC 2011 - 7th International Wireless Communications and Mobile Computing Conference
ER -