Fang Fei Xu

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Atmospheric turbulence can cause a significant performance degradation in free space optical communication systems. An efficient solution could be to exploit the temporal diversity to improve the performance of the transmission link. Depending on the tolerable delay latency, we can benefit from some degree of time diversity that we can exploit by employing(More)
Depending on the tolerable delay latency, we can benefit from some degree of time diversity in free-space optical links, by employing channel coding and interleaving. We present a comparative study of the performance of different channel coding techniques at the presence of time diversity. We show that turbo-codes are particularly efficient under strong(More)
— For terrestrial free space optical (FSO) systems , we investigate the use of pulse position modulation (PPM) which has the interesting property of being average-energy efficient. We first discuss the upper bound on the information transmission rate for a Gaussian channel. Next, we consider the more practical aspect of channel coding and look for a(More)
We study two-port-competition game and its extensions. We show the delicate relationship between start-up quality and equilibrium profile both in one-short game and two-period game. Critical value q * and q ′ is defined to category different scenario where different equilibrium is achieved. We also study the leader-follower game where one port can move(More)
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