Refine
Year of publication
- 2018 (79) (remove)
Document Type
- Conference Proceeding (79) (remove)
Conference Type
- Konferenzartikel (59)
- Konferenz-Abstract (14)
- Konferenz-Poster (3)
- Sonstiges (3)
Has Fulltext
- no (79) (remove)
Is part of the Bibliography
- yes (79)
Keywords
- RoboCup (3)
- 5G mobile communication (2)
- Access protocols (2)
- Decoding (2)
- Gamification (2)
- Multiuser detection (2)
- Payloads (2)
- Physical layer (2)
- access protocols (2)
- decoding (2)
Institute
- Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) (35)
- Fakultät Maschinenbau und Verfahrenstechnik (M+V) (19)
- ivESK - Institut für verlässliche Embedded Systems und Kommunikationselektronik (13)
- Fakultät Medien und Informationswesen (M+I) (bis 21.04.2021) (11)
- Fakultät Wirtschaft (W) (10)
- INES - Institut für nachhaltige Energiesysteme (7)
- ACI - Affective and Cognitive Institute (4)
- WLRI - Work-Life Robotics Institute (2)
- CRT - Campus Research & Transfer (1)
- Zentrale Einrichtungen (1)
Open Access
- Closed Access (42)
- Open Access (31)
- Closed (6)
- Bronze (3)
This paper describes the Sweaty II humanoid adult size robot trying to qualify for the RoboCup 2018 adult size humanoid competition. Sweaty came 2nd in RoboCup 2017 adult size league. The main characteristics of Sweaty are described in the Team Description Paper 2017. The improvements that have been made or are planned to be implemented for RoboCup 2018 are described in this paper.
A Nonlinear FEM Model to Calculate Third-Order Harmonic and Intermodulation in TC-SAW Devices
(2018)
Nonlinearities in Temperature Compensated SAW (TC-SAW) devices in the 2 GHz range are investigated using a nonlinear finite element model by simultaneously considering both third-order intermodulation distortion (IMD3)and third harmonic (H3). In the employed perturbation approach, different contributions to the total H3, the direct and indirect contribution, are discussed. H3 and IMD3 measurements were fitted simultaneously using scaling factors for SiO 2 film and Cu electrode nonlinear material tensors in TC-SAW devices. We employ a P-Matrix simulation as intermediate step: Firstly, measurement and nonlinear P-Matrix calculations for finite devices are compared and coefficients of the P-Matrix simulation are determined. The nonlinear tensor data of the different materials involved in periodic nonlinear finite element method (FEM) computations are optimized to fit periodic P-Matrix calculations by introducing scaling factors. Thus, the contribution of different materials to the nonlinear behavior of TC-SAW devices is obtained and the role of materials is discussed.
In a Semi-autonomic cloud auditing architecture we weaved in privacy enhancing mechanisms [15] by applying the public key version of the Somewhat homomorphic encryption (SHE) scheme from [4]. It turns out that the performance of the SHE can be significantly improved by carefully deriving relevant crypto parameters from the concrete cloud auditing use cases for which the scheme serves as a privacy enhancing approach. We provide a generic algorithm for finding good SHE parameters with respect to a given use case scenario by analyzing and taking into consideration security, correctness and performance of the scheme. Also, to show the relevance of our proposed algorithms we apply it to two predominant cloud auditing use cases.