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For improving throughput and energy efficiency in wireless sensor networks, multi-channel media access control has been proposed. Existing multi-channel MAC protocols are mainly focus on channel assignment and media access, it means that a senor node is bound with one channel, which makes the whole network inflexible and cannot be adapted to the variations of environment. In this paper, we proposed...
The capacity of a wireless network has been widely studied in the literature, including the capacity for unicast and the capacity for broadcast. In this paper, we studied the capacity of a wireless network for broadcast. Previous studies on broadcast capacity either assume that all links in the wireless network has the same channel capacity, or assume that the transmission ranges of a wireless node...
This paper studies energy saving of PRMCS (pharos remote monitoring and control system) based on WSN (wireless sensor networks). RTU (remote terminal unit), sensor networks of PRMCS, are installed in outdoor fieldwork, and limited in power, PRMCS saving energy become a key problem. We develop a low power consumption method for PRMCS in which LEACH route algorithm and Sleep-Waken model dispatch are...
This correspondence is motivated by two different scenarios. The first is a cognitive radio system where a cognitive radio knows a ldquodumbrdquo radio's message and the second is a sensor network in a correlated field where sensors possessing a nested message structure assist one another's information transmission. Both scenarios are modeled using the framework of discrete memoryless interference...
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