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In cognitive radio networks, primary users can share some licensed spectrums with secondary users in exchange for cooperation. In this study, an overlay scenario is investigated where a secondary node provides two-way relaying service to a pair of primary users and thus is allowed to transmit its own messages by using some licensed spectrums. Orthogonal channelisation is assumed for the two-way relay...
This article is mainly about how to allocate scarce resources efficiently in network service, to enable network resources meeting the demand as far as possible, and improving the social welfare of user groups. Considering the user's credit and waiting time for allocating resources, we propose a user welfare function and establish a common network resource allocation mechanism which integrates combinatorial...
The article is mainly about how to allocate the limited network resources timely and effectively meanwhile improving the overall satisfaction after the allocation. In this paper, a general resource allocation model is established which integrates the typical characteristic of the actual access / supply restricted network resources, considering user credit, waiting time and other factors. The user...
This paper researches the data association problem in mobile robot simultaneous localization and mapping (SLAM) and try to solve this problem with the thought of simulate anneal arithmetic. The essentiality of data association in SLAM is analyzed and then the data association problem is transformed into a combinatorial optimization problem, defined by variables and functions in details. The simulate...
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