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| 2. |
- Boano, Carlo Alberto, et al.
(författare)
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IoTBench: Towards a Benchmark for Low-power Wireless Networking
- 2018
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Ingår i: 2018 1ST IEEE WORKSHOP ON BENCHMARKING CYBER-PHYSICAL NETWORKS AND SYSTEMS (CPSBENCH 2018). - 9781538667422 ; , s. 36-41
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Konferensbidrag (refereegranskat)abstract
- Unlike other fields of computing and communications, low-power wireless networking is plagued by one major issue: the absence of a well-defined, agreed-upon yardstick to compare the performance of systems, namely, a benchmark. We argue that this situation may eventually represent a hampering factor for a technology expected to be key in the Internet of Things (IoT) and Cyber-physical Systems (CPS). This paper describes a recent initiative to remedy this situation, seeking to enlarge the participation from the community.
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| 3. |
- Duquennoy, Simon, et al.
(författare)
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Poster Abstract: A benchmark for low-power wireless networking
- 2016
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Ingår i: Proceedings of the 14th ACM Conference on Embedded Networked Sensor Systems. - New York, NY, USA : ACM. - 9781450342636 ; 14 November 2016, s. 332-333
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Konferensbidrag (refereegranskat)abstract
- Experimental research in low-power wireless networking lacks a reference benchmark. While other communities such as databases or machine learning have standardized bench-marks, our community still uses ad-hoc setups for its exper-iments and struggles to provide a fair comparison between communication protocols. Reasons for this include the di-versity of network scenarios and the stochastic nature of wireless experiments. Leveraging on the excellent testbeds and tools that have been built to support experimental val-idation, we make the case for a reference benchmark to pro-mote a fair comparison and reproducibility of results. This abstract describes early design elements and a benchmark-ing methodology with the goal to gather feedback from the community rather than propose a definite solution.
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| 5. |
- Landsiedel, Olaf, 1979, et al.
(författare)
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Capture effect based communication primitives: Closing the loop in wireless cyber-physical systems
- 2012
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Ingår i: SenSys 2012 - Proceedings of the 10th ACM Conference on Embedded Networked Sensor Systems. - New York, NY, USA : ACM. - 9781450311694 ; , s. 341-342
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Konferensbidrag (refereegranskat)abstract
- We argue in this paper that CaptureCom closes the control loop in wireless CPS: it provides efficient collection, processing (in our example aggregation), and dissemination within the network, making it suitable for widespread control applications. Our initial evaluation shows that CaptureCom efficiently exploits spacial diversity. It converges within 125 ms at high reliability, leading to low communication delays and high energy efficiency. Motivated by these promising initial results, we are currently investigating the theoretical and experimental foundations of CaptureCom as a novel primitive for wireless CPS.
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| 6. |
- Landsiedel, Olaf, 1979, et al.
(författare)
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Chaos: Versatile and Efficient All-to-All Data Sharing and In-Network Processing at Scale
- 2013
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Ingår i: SenSys '13: Proceedings of the 11th ACM Conference on Embedded Networked Sensor Systems. - New York, NY, USA : ACM. - 9781450320276
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Konferensbidrag (refereegranskat)abstract
- An important building block for low-power wireless systems is to efficiently share and process data among all devices in a network. However, current approaches typically split such all-to-all interactions into sequential collection, processing, and dissemination phases, thus handling them inefficiently.We introduce Chaos, the first primitive that natively supports all-to-all data sharing in low-power wireless networks. Different from current approaches, Chaos embeds programmable in-network processing into a communication support based on synchronous transmissions. We show that this design enables a variety of common all-to-all interactions, including network-wide agreement and data aggregation. Results from three testbeds and simulations demonstrate that Chaos scales efficiently to networks consisting of hundreds of nodes, achieving severalfold improvements over LWB and CTP/Drip in radio duty cycle and latency with almost 100 % reliability across all scenarios we tested. For example, Chaos computes simple aggregates, such as the maximum, in a 100-node multi-hop network within less than 90 milliseconds.
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| 7. |
- Zimmerling, Marco, et al.
(författare)
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On modeling low-power wireless protocols based on synchronous packet transmissions
- 2013
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Ingår i: Proceedings - IEEE Computer Society's Annual International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunications Systems, MASCOTS. - 9780769551029 ; , s. 546-555
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Konferensbidrag (refereegranskat)abstract
- Mathematical models play a pivotal role in understanding and designing advanced low-power wireless systems. However, the distributed and uncoordinated operation of traditional multi-hop low-power wireless protocols greatly complicates their accurate modeling. This is mainly because these protocols build and maintain substantial network state to cope with the dynamics of low-power wireless links. Recent protocols depart from this design by leveraging synchronous transmissions (ST), whereby multiple nodes simultaneously transmit towards the same receiver, as opposed to pair wise link-based transmissions (LT). ST improve the one-hop packet reliability to an extent that efficient multi-hop protocols with little network state are feasible. This paper studies whether ST also enable simple yet accurate modeling of these protocols. Our contribution to this end is two-fold. First, we show, through experiments on a 139-node test bed, that characterizing packet receptions and losses as a sequence of independent and identically distributed (i.i.d.) Bernoulli trials-a common assumption in protocol modeling but often illegitimate for LT-is largely valid for ST. We then show how this finding simplifies the modeling of a recent ST-based protocol, by deriving (i) sufficient conditions for probabilistic guarantees on the end-to-end packet reliability, and (ii) a Markovian model to estimate the long-term energy consumption. Validation using test bed experiments confirms that our simple models are also highly accurate, for example, the model error in energy against real measurements is 0.25%, a figure never reported before in the related literature.
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| 8. |
- Zimmerling, Marco, et al.
(författare)
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Poster abstract : Synchronous transmissions enable simple yet accurate protocol modeling
- 2013
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Ingår i: SenSys 2013 - Proceedings of the 11th ACM Conference on Embedded Networked Sensor Systems. - New York, NY, USA : Association for Computing Machinery. - 9781450320276
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Konferensbidrag (refereegranskat)abstract
- Traditional low-power wireless protocols maintain distributed network state to cope with link dynamics. Modeling the pro- tocol operation as a function of network state is dificult as the state is frequently updated in an uncoordinated fashion. Recent protocols use synchronous transmissions (ST): mul- tiple nodes send simultaneously towards the same receiver, as opposed to pairwise link-based transmissions (LT). ST en- able eficient multi-hop protocols with little network state. We studied whether ST in Glossy enable simple yet accu- rate protocol modeling [10]. Based on extensive testbed experiments and statistical analyses, we found that: (i) unlike LT, packet receptions and losses with ST largely adhere to a sequence of independent and identically distributed (i.i.d.) Bernoulli trials; (ii) this property greatly simplifies accurately modeling ST-based protocols, as we demonstrated by obtaining model errors below 0.25% in energy for the Glossy based Low-Power Wireless Bus (LWB).
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