TY - GEN
T1 - MIMO Optical Intensity Channels with Peak Intensity Constraints
T2 - 2018 IEEE International Symposium on Information Theory, ISIT 2018
AU - Chaaban, Anas
AU - Rezki, Zouheir
AU - Alouini, Mohamed Slim
N1 - Funding Information:
Z. Rezki is with the Department of Electrical and Computer Engineering, University of Idaho, Moscow, ID, USA. Email: zrezki@uidaho.edu. His work is supported in part by the Qatar National Research Fund (a member of Qatar Foundation) under Grant NPRP 9-077-2-036. The statements made herein are solely the responsibility of the authors.
Funding Information:
A. Chaaban is with the School of Engineering, University of British Columbia, Kelowna, BC V1Y 1V7, Canada. Email: anas.chaaban@ubc.ca. His work was supported by the Natural Sciences and Engineering Research Council of Canada (NSERC).
Publisher Copyright:
© 2018 IEEE.
PY - 2018/8/15
Y1 - 2018/8/15
N2 - The capacity of the intensity-modulation direct-detection (IM-DD) multiple-input multiple-output channel is studied under average and peak intensity constraints. We focus on the low signal-to-noise ratio (SNR) regime where the constraints proportionally vanish, or alternatively, where the noise power is large. A general upper bound on the capacity of this channel is derived. Then, this bound is shown to be tight at low SNR, where it coincides with the achievable rate of (i) on-off keying (OOK), spatial repetition coding, and maximum-ratio combining under individual average constraint and (ii) OOK with maximally-correlated inputs under a sum average constraint. This leads to a low-SNR capacity characterization of the channel.
AB - The capacity of the intensity-modulation direct-detection (IM-DD) multiple-input multiple-output channel is studied under average and peak intensity constraints. We focus on the low signal-to-noise ratio (SNR) regime where the constraints proportionally vanish, or alternatively, where the noise power is large. A general upper bound on the capacity of this channel is derived. Then, this bound is shown to be tight at low SNR, where it coincides with the achievable rate of (i) on-off keying (OOK), spatial repetition coding, and maximum-ratio combining under individual average constraint and (ii) OOK with maximally-correlated inputs under a sum average constraint. This leads to a low-SNR capacity characterization of the channel.
UR - http://www.scopus.com/inward/record.url?scp=85052485741&partnerID=8YFLogxK
U2 - 10.1109/ISIT.2018.8437674
DO - 10.1109/ISIT.2018.8437674
M3 - Conference contribution
AN - SCOPUS:85052485741
SN - 9781538647806
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 1360
EP - 1364
BT - 2018 IEEE International Symposium on Information Theory, ISIT 2018
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 17 June 2018 through 22 June 2018
ER -