TY - GEN
T1 - Optical MISO IM/DD channels
T2 - 2017 IEEE International Symposium on Information Theory, ISIT 2017
AU - Sapenov, Yerzhan
AU - Chaaban, Anas
AU - Rezki, Zouheir
AU - Alouini, Mohamed Slim
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/8/9
Y1 - 2017/8/9
N2 - In this paper, an optical wireless multipleinput single-output communication system employing intensitymodulation direct-detection is considered. Subject to a per transmit-aperture power constraint, the performance of direct current (DC) offset space-time block codes (STBC) is studied in terms of pairwise error probability (PEP). It is shown that among the class of DC-STBCs, the worst case PEP, i.e., the one corresponding to the minimum distance between two codewords, is minimized by repetition coding (RC) for any channel state. Therefore, it follows that among all DC-STBCs, RC is optimal in terms of worst case PEP under any turbulence statistics. This result agrees with previously published numerical results showing the superiority of RC in such systems. It also agrees with previously published analytical results on this topic under lognormal turbulence and further extends it to arbitrary turbulence statistics. Numerical results provided to verify this indicate that RC is not only optimal in terms of worst case PEP, but also in terms of average error probability.
AB - In this paper, an optical wireless multipleinput single-output communication system employing intensitymodulation direct-detection is considered. Subject to a per transmit-aperture power constraint, the performance of direct current (DC) offset space-time block codes (STBC) is studied in terms of pairwise error probability (PEP). It is shown that among the class of DC-STBCs, the worst case PEP, i.e., the one corresponding to the minimum distance between two codewords, is minimized by repetition coding (RC) for any channel state. Therefore, it follows that among all DC-STBCs, RC is optimal in terms of worst case PEP under any turbulence statistics. This result agrees with previously published numerical results showing the superiority of RC in such systems. It also agrees with previously published analytical results on this topic under lognormal turbulence and further extends it to arbitrary turbulence statistics. Numerical results provided to verify this indicate that RC is not only optimal in terms of worst case PEP, but also in terms of average error probability.
UR - http://www.scopus.com/inward/record.url?scp=85034066934&partnerID=8YFLogxK
U2 - 10.1109/ISIT.2017.8006492
DO - 10.1109/ISIT.2017.8006492
M3 - Conference contribution
AN - SCOPUS:85034066934
T3 - IEEE International Symposium on Information Theory - Proceedings
SP - 71
EP - 75
BT - 2017 IEEE International Symposium on Information Theory, ISIT 2017
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 25 June 2017 through 30 June 2017
ER -