TY - JOUR
T1 - Achieving carrier class availability of FSO link via a complementary RF link
AU - Wu, Haiping
AU - Hamzeh, Belal
AU - Kavehrad, Mohsen
PY - 2004
Y1 - 2004
N2 - Due to the difficulty of deploying Fiber-to-home, the solution for the last-mile problem remains an unsolved challenge. Among all the alternatives, free-space optics (FSO) shows great potential due to its non-interfering nature and abundant available bandwidth. However, because the operational status of an FSO link is highly weather dependent, feasibility of using FSO to deliver data to end-users remains questionable. A hybrid architecture that utilizes the complementary nature of FSO and radio frequency (RF) links with respect to their individual weather sensitivities has been proposed to significantly increase availability. According to this architecture, we developed a channel model integrating the RF and FSO channels. Experimental measurements are also taken into account in order to verify validity of the model. Based on the model and available weather condition data, we concluded that the hybrid link does demonstrate significantly better availability than the FSO alone case. Carrier class availability can be achieved.
AB - Due to the difficulty of deploying Fiber-to-home, the solution for the last-mile problem remains an unsolved challenge. Among all the alternatives, free-space optics (FSO) shows great potential due to its non-interfering nature and abundant available bandwidth. However, because the operational status of an FSO link is highly weather dependent, feasibility of using FSO to deliver data to end-users remains questionable. A hybrid architecture that utilizes the complementary nature of FSO and radio frequency (RF) links with respect to their individual weather sensitivities has been proposed to significantly increase availability. According to this architecture, we developed a channel model integrating the RF and FSO channels. Experimental measurements are also taken into account in order to verify validity of the model. Based on the model and available weather condition data, we concluded that the hybrid link does demonstrate significantly better availability than the FSO alone case. Carrier class availability can be achieved.
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M3 - Article
AN - SCOPUS:21644459230
SN - 1058-6393
VL - 2
SP - 1483
EP - 1487
JO - Conference Record of the Asilomar Conference on Signals, Systems and Computers
JF - Conference Record of the Asilomar Conference on Signals, Systems and Computers
ER -