@inproceedings{785, author = {{Blanckenstein, Johannes and Klaue, Jirka and Karl, Holger}}, booktitle = {{European Wireless 2012 - 18th European Conference 2012, April 18-20, 2012, Poznan, Poland.}}, title = {{{Energy Efficient Clustering using a Wake-up Receiver}}}, year = {{2012}}, } @inproceedings{787, author = {{Dräxler, Martin and Karl, Holger}}, booktitle = {{2012 IEEE International Conference on Green Computing and Communications, Conference on Internet of Things, and Conference on Cyber, Physical and Social Computing, GreenCom/iThings/CPSCom 2012, Besancon, France, November 20-23, 2012}}, pages = {{581----587}}, title = {{{Efficiency of On-Path and Off-Path Caching Strategies in Information Centric Networks}}}, doi = {{10.1109/GreenCom.2012.82}}, year = {{2012}}, } @inproceedings{791, author = {{Volkhausen, Tobias and Schinköthe, Kai and Karl, Holger}}, booktitle = {{2012 IEEE Wireless Communications and Networking Conference, WCNC 2012, Paris, France, April 1-4, 2012}}, pages = {{575----580}}, title = {{{Quantization techniques for accurate soft message combining}}}, doi = {{10.1109/WCNC.2012.6214434}}, year = {{2012}}, } @inproceedings{792, author = {{Volkhausen, Tobias and Dridger, Kornelius and S. Lichte, Hermann and Karl, Holger}}, booktitle = {{10th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks (WiOpt), Paderborn, Germany, May 14-18, 2012}}, pages = {{299----304}}, title = {{{Efficient cooperative relaying in wireless multi-hop networks with commodity WiFi hardware}}}, year = {{2012}}, } @article{579, abstract = {{A left-to-right maximum in a sequence of n numbers s_1, …, s_n is a number that is strictly larger than all preceding numbers. In this article we present a smoothed analysis of the number of left-to-right maxima in the presence of additive random noise. We show that for every sequence of n numbers s_i ∈ [0,1] that are perturbed by uniform noise from the interval [-ε,ε], the expected number of left-to-right maxima is Θ(&sqrt;n/ε + log n) for ε>1/n. For Gaussian noise with standard deviation σ we obtain a bound of O((log3/2 n)/σ + log n).We apply our results to the analysis of the smoothed height of binary search trees and the smoothed number of comparisons in the quicksort algorithm and prove bounds of Θ(&sqrt;n/ε + log n) and Θ(n/ε+1&sqrt;n/ε + n log n), respectively, for uniform random noise from the interval [-ε,ε]. Our results can also be applied to bound the smoothed number of points on a convex hull of points in the two-dimensional plane and to smoothed motion complexity, a concept we describe in this article. We bound how often one needs to update a data structure storing the smallest axis-aligned box enclosing a set of points moving in d-dimensional space.}}, author = {{Damerow, Valentina and Manthey, Bodo and Meyer auf der Heide, Friedhelm and Räcke, Harald and Scheideler, Christian and Sohler, Christian and Tantau, Till}}, journal = {{Transactions on Algorithms}}, number = {{3}}, pages = {{30}}, publisher = {{ACM}}, title = {{{Smoothed analysis of left-to-right maxima with applications}}}, doi = {{10.1145/2229163.2229174}}, year = {{2012}}, } @inproceedings{619, abstract = {{Dynamics in networks is caused by a variety of reasons, like nodes moving in 2D (or 3D) in multihop cellphone networks, joins and leaves in peer-to-peer networks, evolution in social networks, and many others. In order to understand such kinds of dynamics, and to design distributed algorithms that behave well under dynamics, many ways to model dynamics are introduced and analyzed w.r.t. correctness and eciency of distributed algorithms. In [16], Kuhn, Lynch, and Oshman have introduced a very general, worst case type model of dynamics: The edge set of the network may change arbitrarily from step to step, the only restriction is that it is connected at all times and the set of nodes does not change. An extended model demands that a xed connected subnetwork is maintained over each time interval of length T (T-interval dynamics). They have presented, among others, algorithms for counting the number of nodes under such general models of dynamics.In this paper, we generalize their models and algorithms by adding random edge faults, i.e., we consider fault-prone dynamic networks: We assume that an edge currently existing may fail to transmit data with some probability p. We rst observe that strong counting, i.e., each node knows the correct count and stops, is not possible in a model with random edge faults. Our main two positive results are feasibility and runtime bounds for weak counting, i.e., stopping is no longer required (but still a correct count in each node), and for strong counting with an upper bound, i.e., an upper bound N on n is known to all nodes.}}, author = {{Brandes, Philipp and Meyer auf der Heide, Friedhelm}}, booktitle = {{Proceedings of the 4th Workshop on Theoretical Aspects of Dynamic Distributed Systems (TADDS)}}, pages = {{9--14}}, title = {{{Distributed Computing in Fault-Prone Dynamic Networks}}}, doi = {{10.1145/2414815.2414818}}, year = {{2012}}, } @article{6993, author = {{Büchter, K. and Frommeberger, D. and Kremer, H.-Hugo}}, journal = {{bwp@ Berufs- und Wirtschaftspädagogik - online}}, number = {{23}}, title = {{{Akademisierung der Berufsbildung }}}, year = {{2012}}, } @article{7300, author = {{Burke, A. M. and Waddington, D. E. J. and Carrad, D. J. and Lyttleton, R. W. and Tan, H. H. and Reece, P. J. and Klochan, O. and Hamilton, A. R. and Rai, A. and Reuter, Dirk and Wieck, A. D. and Micolich, A. P.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{16}}, publisher = {{American Physical Society (APS)}}, title = {{{Origin of gate hysteresis inp-type Si-doped AlGaAs/GaAs heterostructures}}}, doi = {{10.1103/physrevb.86.165309}}, volume = {{86}}, year = {{2012}}, } @article{7301, author = {{Höpfner, Henning and Fritsche, Carola and Ludwig, Arne and Ludwig, Astrid and Stromberg, Frank and Wende, Heiko and Keune, Werner and Reuter, Dirk and Wieck, Andreas D. and Gerhardt, Nils C. and Hofmann, Martin R.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{11}}, publisher = {{AIP Publishing}}, title = {{{Magnetic field dependence of the spin relaxation length in spin light-emitting diodes}}}, doi = {{10.1063/1.4752162}}, volume = {{101}}, year = {{2012}}, } @article{7302, author = {{Varwig, S. and Schwan, A. and Barmscheid, D. and Müller, C. and Greilich, A. and Yugova, I. A. and Yakovlev, D. R. and Reuter, Dirk and Wieck, A. D. and Bayer, M.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{7}}, publisher = {{American Physical Society (APS)}}, title = {{{Hole spin precession in a (In,Ga)As quantum dot ensemble: From resonant spin amplification to spin mode locking}}}, doi = {{10.1103/physrevb.86.075321}}, volume = {{86}}, year = {{2012}}, } @article{7303, author = {{Ganczarczyk, A. and Rojek, S. and Quindeau, A. and Geller, M. and Hucht, A. and Notthoff, C. and König, J. and Lorke, A. and Reuter, Dirk and Wieck, A. D.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{8}}, publisher = {{American Physical Society (APS)}}, title = {{{Transverse rectification in density-modulated two-dimensional electron gases}}}, doi = {{10.1103/physrevb.86.085309}}, volume = {{86}}, year = {{2012}}, } @article{7312, author = {{Beckel, Andreas and Zhou, Daming and Marquardt, Bastian and Reuter, Dirk and Wieck, Andreas D. and Geller, Martin and Lorke, Axel}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{23}}, publisher = {{AIP Publishing}}, title = {{{Momentum matching in the tunneling between 2-dimensional and 0-dimensional electron systems}}}, doi = {{10.1063/1.4728114}}, volume = {{100}}, year = {{2012}}, } @article{7313, author = {{Schwan, A. and Varwig, S. and Greilich, A. and Yakovlev, D. R. and Reuter, Dirk and Wieck, A. D. and Bayer, M.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{23}}, publisher = {{AIP Publishing}}, title = {{{Non-resonant optical excitation of mode-locked electron spin coherence in (In,Ga)As/GaAs quantum dot ensemble}}}, doi = {{10.1063/1.4726264}}, volume = {{100}}, year = {{2012}}, } @article{7315, author = {{Buchholz, Sven S. and Sternemann, Elmar and Chiatti, Olivio and Reuter, Dirk and Wieck, Andreas D. and Fischer, Saskia F.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{23}}, publisher = {{American Physical Society (APS)}}, title = {{{Noise thermometry in narrow two-dimensional electron gas heat baths connected to a quasi-one-dimensional interferometer}}}, doi = {{10.1103/physrevb.85.235301}}, volume = {{85}}, year = {{2012}}, } @article{7324, author = {{Kurtze, H. and Yakovlev, D. R. and Reuter, Dirk and Wieck, A. D. and Bayer, M.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{19}}, publisher = {{American Physical Society (APS)}}, title = {{{Hyperfine interaction mediated exciton spin relaxation in (In,Ga)As quantum dots}}}, doi = {{10.1103/physrevb.85.195303}}, volume = {{85}}, year = {{2012}}, } @article{7325, author = {{Schuster, J and Kim, T Y and Batke, E and Reuter, Dirk and Wieck, A D}}, issn = {{0953-8984}}, journal = {{Journal of Physics: Condensed Matter}}, number = {{16}}, publisher = {{IOP Publishing}}, title = {{{Photoluminescence lineshape features of carbon δ-doped GaAs heterostructures}}}, doi = {{10.1088/0953-8984/24/16/165801}}, volume = {{24}}, year = {{2012}}, } @article{7326, author = {{Bryja, L. and Jadczak, J. and Wójs, A. and Bartsch, G. and Yakovlev, D. R. and Bayer, M. and Plochocka, P. and Potemski, M. and Reuter, Dirk and Wieck, A. D.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{16}}, publisher = {{American Physical Society (APS)}}, title = {{{Cyclotron-resonant exciton transfer between the nearly free and strongly localized radiative states of a two-dimensional hole gas in a high magnetic field}}}, doi = {{10.1103/physrevb.85.165308}}, volume = {{85}}, year = {{2012}}, } @article{7327, author = {{Huang, J. and Chen, Y. S. and Ludwig, A. and Reuter, Dirk and Wieck, A. D. and Bacher, G.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{13}}, publisher = {{AIP Publishing}}, title = {{{Electron-nuclei spin coupling in GaAs—Free versus localized electrons}}}, doi = {{10.1063/1.3699261}}, volume = {{100}}, year = {{2012}}, } @article{7329, author = {{Houel, J. and Kuhlmann, A. V. and Greuter, L. and Xue, F. and Poggio, M. and Gerardot, B. D. and Dalgarno, P. A. and Badolato, A. and Petroff, P. M. and Ludwig, A. and Reuter, Dirk and Wieck, A. D. and Warburton, R. J.}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, number = {{10}}, publisher = {{American Physical Society (APS)}}, title = {{{Probing Single-Charge Fluctuations at aGaAs/AlAsInterface Using Laser Spectroscopy on a Nearby InGaAs Quantum Dot}}}, doi = {{10.1103/physrevlett.108.107401}}, volume = {{108}}, year = {{2012}}, } @article{7330, author = {{Chen, J. C. H. and Wang, D. Q. and Klochan, O. and Micolich, A. P. and Das Gupta, K. and Sfigakis, F. and Ritchie, D. A. and Reuter, Dirk and Wieck, A. D. and Hamilton, A. R.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{5}}, publisher = {{AIP Publishing}}, title = {{{Fabrication and characterization of ambipolar devices on an undoped AlGaAs/GaAs heterostructure}}}, doi = {{10.1063/1.3673837}}, volume = {{100}}, year = {{2012}}, }