Results 31 to 40 of about 128,644 (293)
Remote Sensing, 2023 Autonomous localization without local wireless facilities is proven as an efficient way for realizing location-based services in complex urban environments. The precision of the current map-matching algorithms is subject to the poor ability of integrated
Chaoyang Shi +6 more
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On the Dynamics of the Error Floor Behavior in (Regular) LDPC Codes [PDF]
IEEE Transactions on Information Theory, 2009 It is shown that dominant trapping sets of regular LDPC codes, so called absorption sets, undergo a two-phased dynamic behavior in the iterative message-passing decoding algorithm. Using a linear dynamic model for the iteration behavior of these sets, it is shown that they undergo an initial geometric growth phase which stabilizes in a final bit ...
Christian Schlegel, Shuai Zhang
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Hardware and software design of BMW system for multi-floor localization
EURASIP Journal on Wireless Communications and Networking, 2017 Although the Micro Electro Mechanical System (MEMS) sensors are capable of providing short-term high positioning accuracy, every positioning result significantly depends on the historical ones, which inevitably leads to the long-term error accumulation ...
Mu Zhou +3 more
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Mechanics Model of Floor Heave: Case Study on Thin Coal Seam with Soft Roof and Floor
Applied Sciences, 2023 The fully mechanized caving roadway’s floor heave has a significant impact on the stability of the narrow coal pillars, the filling body next to the roadway, as well as the entire roadway.
Peng Huang +5 more
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2007 IEEE Information Theory Workshop, 2007 We discuss how the loop calculus approach of [Chertkov, Chernyak '06], enhanced by the pseudo-codeword search algorithm of [Chertkov, Stepanov '06] and the facet-guessing idea from [Dimakis, Wainwright '06], improves decoding of graph based codes in the error-floor domain.
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Augmented decoders for LDPC codes
EURASIP Journal on Wireless Communications and Networking, 2018 The performance of a belief propagation decoder for low-density parity-check codes is limited by the presence of trapping sets in the code’s graph. This leads to an error floor at higher signal-to-noise ratios.
Alex R. Rigby +4 more
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Sensors, 2023 Pressure sensors integrated in surfaces, such as the floor, can enable movement, event, and object detection with relatively little effort and without raising privacy concerns, such as video surveillance.
Asier Alvarez Rueda +7 more
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Error Floor Analysis of Coded Slotted ALOHA over Packet Erasure Channels [PDF]
, 2014 We present a framework for the analysis of the error floor of coded slotted ALOHA (CSA) for finite frame lengths over the packet erasure channel. The error floor is caused by stopping sets in the corresponding bipartite graph, whose enumeration is, in ...
Ivanov, Mikhail, +10 more
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Lowering the Error Floor of Error Correction Code Transformer
CoRR6 ...
Taewoo Park +4 more
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A Monocular Vision Sensor-Based Obstacle Detection Algorithm for Autonomous Robots
Sensors, 2016 This paper presents a monocular vision sensor-based obstacle detection algorithm for autonomous robots. Each individual image pixel at the bottom region of interest is labeled as belonging either to an obstacle or the floor.
Tae-Jae Lee +2 more
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