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In spectrum underlay cognitive radio networks, secondary users (SUs) are allowed to reuse the spectrum allocated to a primary system. The interference between SUs actually carries information and can potentially be exploited to improve the network performance through information-theoretic interference processing. In this paper, we design an optimal joint power and rate control algorithm that maximizes...
Energy harvesting (EH) has recently emerged as a promising technology for next-generation green wireless networks, as it can power communication nodes with renewable energy. However, it is challenging to provide satisfactory performance in such systems, due to the sporadic energy arrival and the low harvesting rate. In this paper, we propose a novel cooperation strategy for EH networks with the help...
A modular reconfigurable robot system - Xmobot consists of a set of homogenous modules. Xmobot modules have flexible locomotion and transformation capability. Multiple modules can be assembled into diverse configurations. The module state matrix and role-based configuration matrix are presented and constructed for representing the module state and configuration. The method of configuration self-identification...
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