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In wireless sensor networks (WSNs), due to the limited energy of nodes, discovering neighbors needs to be achieved in an energy-efficient way. This means that, at a given energy consumption, we need to reduce the worst-case neighbor discovery latency as far as possible. In this letter, we propose a novel deterministic neighbor discovery method, called Lightning. Lightning employs two kinds of active...
An active RFID tag design based on nRF24L01 is proposed in this paper. This active RFID tag works in 2.4GHz. The requirements for low power consumption and low system complexity of RFID tags have been well considered. The circuit diagram and the communication protocol are fully described in the paper. Particularly, an anti-collision algorithm has been proposed to improve the effectiveness of thecommunication...
To manage and monitor their networks in a proper way, network operators are often interested in identifying the applications generating the traffic traveling through their networks, and doing it as fast (i.e., from as few packets) as possible. State-of-the-art packet-based traffic classification methods are either based on the costly inspection of the payload of several packets of each flow or on...
UHF RFID technology provides significant advantages over traditional object-tracking technologies and it is increasingly adopted and deployed in real applications. Tags collision problem is the key problem affecting the reading efficiency in UHF RFID systems. In this paper, it proposed fixed Q algorithm and adaptive Q algorithm to anti-collision. Both analytical and simulation results show that comparing...
We describe an algorithm for solving a single machine scheduling problem with additional assumptions motivated by magnetic resonance imaging (MRI) systems. In the operating model, the temperature dynamics is involved and the objective is to minimize the total production time.
RFID is a popular automatic identification technology currently, which will have large opportunities in the future. Communication algorithm is a key step for the design of RFID system. This paper propose design and implementation communication algorithm in software. There are many research activities in RFID hardware systems, but there is few in software infrastructure. In order to the implementation...
For low-cost RFID systems, the design of passive tags is a key issue in anti-collision protocols where lower power consumption allows a longer working distance between tags and the reader. In this paper, we look at anti-collision protocols in tags' processing for their power optimization. We propose a new criterion, which takes into account both energy consumption and time complexity, to evaluate...
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