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http://dx.doi.org/10.6109/jkiice.2015.19.3.514

Adaptive Transmission Techniques for the Availability Assurance of Long-distance Radio Link  

Youn, Jong-Taek (LIG NEX1 Co., Ltd/NCW Engineering, Ajou University)
Kim, Yongi (LIG NEX1 Co., Ltd.)
Lim, Young-Gap (NCW Engineering, Ajou University)
Kim, Young-Ho (Korea Institute for Defence Analyses/NCW Engineering, Ajou University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.19, no.3, 2015 , pp. 514-522 More about this Journal
Abstract
In Microwave Radio Link, it is necessary to consider the radio fading to consistently assure the radio link of the high quality as the distance. If the fixed modulation is used for the microwave radio link, it is difficult to keep the high availability of link for the case of the long distance. Adaptive Modulation(AM) provide good quality on microwave link, but the application of the only-AM is not enough to provide the availability assurance due to the fluctuating characteristics of link capacity. Our previous study has proposed the improvement method of transmission in association with the distance, however the previous method needed to make up for the common application. There was no suggestion of a mathematical formula with a variable. In this paper, we propose an optimized Adaptive Transmission Techniques with calculating formula of the priority traffic transmission capacity based on AM in consideration of the fade margin for the availability assurance as the distance and the comparison of the channel bandwidth for Long-distance Radio Link.
Keywords
Unavailability; Distance; AM(Adaptive Modulation); Bandwidth;
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Times Cited By KSCI : 1  (Citation Analysis)
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