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To address issues such as increasing number of broadcasting satellite transponders, signal systems becoming increasingly complex and higher requirements on spectrum monitoring in respect of real-time and all-weather coverage are required, this paper introduces a spectrum monitoring equipment based on a high-performance ARM microprocessor platform, as well as the design and implementation of a new...
In the absence of end-to-end paths and without the knowledge of the whole network, packet forwarding, including forwarding decision (i.e., forwarding or dropping the packet) and relaying selection, is crucial to be made by the individual of the node based on the packet-forwarding protocol in autonomous mobile social networks (MSNs). In this paper, we investigate the adaptive packet forwarding in MSNs...
As a kind of effective way to improve the utilization ratio of the spectrum, more and more attention have been paid to the cognitive radio. This paper proposes an improved cognitive radio spectrum sharing model. In this model, the primary users provide idle spectrum to the secondary users. Secondary users have to pay when they share available spectrum with primary users while using the spectrum. The...
In recent studies, an equal-spacing-based (equal-SP) design was developed to generalize and enhance the reference design in IEEE 802.11e standard. Different from the reference design in which all streams will be scheduled in a common minimum spacing, the equal-SP design may schedule different streams with different spacings and it might improve bandwidth utilization of the reference design, up to...
A new end-to-end available bandwidth measurement method based on the parity-packet pair model is proposed on the basis of analyzing the relationship between the separation time and background traffic of the packet pair. This method breaks the constraint that the tense link and the bottleneck link must be the same link, and is able to measure the end-to-end available bandwidth, even in many complex...
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