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Dynamic channel assignment is an effective approach to decrease inter-cell interference and improve link quality. Due to flat beam coverage property, link performance is degraded if conventional dynamic channel assignment schemes are directly employed in satellite network. To solve this problem, this study proposes the beam cooperation based dynamic channel assignment scheme, in which adjacent beams...
Satellite and terrestrial integrated mobile communication systems (STICS) is proposed to construct economical and highly-reliable communication networks. One of the promising approaches to share the frequency spectrum in STICS is dynamic spectrum assignment, which dynamically divides the spectrum into two parts according to the traffic demand of terrestrial service and satellite service. As smaller...
In the future field of communication, broadband multimedia communication satellite will play an important role with its unique advantages. Through analyzing the characteristics of broadband multimedia communication satellite network and the bandwidth allocation, and aiming at the long time delay characteristics of broadband multimedia communication satellite network, this article puts forward the...
OFDM is an effective modulation technique in high speed wireless data application, and it is suitable for frequency selective fading channels. In this paper, a jointly sub-optimal transmission algorithm for scalable video streaming in OFDM wireless systems is proposed, which exploits UEP in modulation and channel coding level. Under the constraint of total power, a fraction of sub-channels with high...
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