TY - JOUR
T1 - High-speed power-efficient indoor wireless infrared communication using code combining-Part II
AU - Akhavan, Koorosh
AU - Kavehrad, Mohsen
AU - Jivkova, Svetla
N1 - Funding Information:
Paper approved by N. C. Beaulieu, the Editor for Wireless Communication Theory of the IEEE Communications Society. Manuscript received April 22, 2000; revised October 15, 2001 and December 10, 2001. This paper was presented in part at the IEEE MILCOM 2000, Los Angeles, CA, USA. This work was supported by the National Science Foundation under Grant ECS-9820604, the IBM SUR Program, and the Pennsylvania State University Center for Information and Communications Technology Research (CICTR).
PY - 2002/9
Y1 - 2002/9
N2 - In this paper, we examine an infrared link composed of a multibeam transmitter and a direction-diversity receiver, employing code combining. The latter represents an added dimension to the conventional diversity concepts, which are limited to combining the individual received symbols. Rate-compatible punctured convolutional codes are used to encode intensity-modulated on-off keying (OOK) optical power, to create an adaptive environment for efficient utilization of channel spectral bandwidth, to provide a means for accurate channel estimation, and to maintain a guaranteed bit error rate (BER) performance at all receiver positions. It is shown that a BER not exceeding 10 -9 with 99% probability can be achieved at bit rates up to a few hundreds of megabits per second, at very low transmitted power levels.
AB - In this paper, we examine an infrared link composed of a multibeam transmitter and a direction-diversity receiver, employing code combining. The latter represents an added dimension to the conventional diversity concepts, which are limited to combining the individual received symbols. Rate-compatible punctured convolutional codes are used to encode intensity-modulated on-off keying (OOK) optical power, to create an adaptive environment for efficient utilization of channel spectral bandwidth, to provide a means for accurate channel estimation, and to maintain a guaranteed bit error rate (BER) performance at all receiver positions. It is shown that a BER not exceeding 10 -9 with 99% probability can be achieved at bit rates up to a few hundreds of megabits per second, at very low transmitted power levels.
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U2 - 10.1109/TCOMM.2002.802565
DO - 10.1109/TCOMM.2002.802565
M3 - Article
AN - SCOPUS:0036748201
SN - 1558-0857
VL - 50
SP - 1495
EP - 1502
JO - IEEE Transactions on Communications
JF - IEEE Transactions on Communications
IS - 9
ER -