Wake-Up-Receiver Concepts - Capabilities and Limitations

Vodel, Matthias; Caspar, Mirko; Hardt, Wolf‐Dietrich

doi:10.4304/jnw.7.1.126-134

Cited by 12 publications

(8 citation statements)

References 11 publications

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“…Due to the increased uptime of the network interfaces for the communication tasks and the packet retransmission, important energy resources are wasted. In [11], these issues as well as capable solutions are discussed in more detail.…”

Section: Nanett Platformmentioning

confidence: 99%

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Energy-efficient communication with wake-up receiver technologies and an optimised protocol stack

Vodel

Lippmann

Hardt

2013

2013 International Conference on Advances in ICT for Emerging Regions (ICTer)

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In the domain of distributed embedded systems, available resources regarding computing power, energy, and memory are strongly limited. With focus on the energy resources, communication hardware and communication tasks represent critical consumers for most of the common application scenarios. Accordingly, optimised approaches for the communication have to be found, including routing, topology control, and scheduling. Wake-Up-Receivers (WuRx) represent a promising approach for minimising the energy consumption in wireless communication environments. To use the conceptual benefits of such technology, an adapted communication behaviour is required. Communication paradigm, communication protocols as well as the runtime behaviour must fit together.In this paper, we introduce a WuRx-optimised routing and topology optimisation approach -WRTA. We discuss the hardware integration as well as the adaptation of the communication task scheduling on application layer. The design matching process of all these aspects allows significant improvements of the energyefficiency in typical sensor network scenarios. For achieving these goals, WRTA represents a lightweight protocol for data-centric WSN environments. The approach combines complex route path calculations and topology optimisation mechanisms, considering a given asynchronous communi cation environment.For proof of concept, we implement several heterogeneous test benches in both soft-and hardware. Hence, the presented simulation results as well as the respective real world measurements provide interesting results regarding the scalability and the efficiency. The analysis of the data shows minimum protocol overhead and outstanding characteristics regarding scalability and robustness. We clarify that application-specific adaptations & configurations within the overall system architecture are essential to ensure an reliable communication behaviour in energy selfsufficient WuRx environments.

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Section: Nanett Platformmentioning

confidence: 99%

“…In [10] and [11], the benefits and challenges of WuRx approaches are discussed critically. Especially, the differences between theory and practice regarding energyefficiency are pointed out.…”

Section: Introductionmentioning

confidence: 99%

Energy-efficient communication with wake-up receiver technologies and an optimised protocol stack

Vodel

Lippmann

Hardt

2013

2013 International Conference on Advances in ICT for Emerging Regions (ICTer)

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“…Tree Topology 1 (compact) Tree Topology 2 (range-sensitive) 3 Star Topology 1 (compact) Star Topology 2 (range-sensitive) For all evaluation environments, we need feasible indicators for the quality of the data aggregation techniques as well as for the communication behaviour in the overall network topology. Here, we define simple but very accurate network parameters, which allows us to quantify the efficiency of related data management approaches.…”

Section: Test Bed Env Ironment and Configurationmentioning

confidence: 99%

“…The choice be tween these paradigms has a significant impact regarding the communication behaviour and the power consumption [3] [4]. Synchronised network topologies provide dedicated time slots for the transmission tasks in each node.…”

Section: Introductionmentioning

confidence: 99%

Data aggregation and data fusion techniques in WSN/SANET topologies - a critical discussion

Vodel

Hardt

2012

TENCON 2012 IEEE Region 10 Conference

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WSN and SANET topologies generate huge amount of heterogeneous data, which has to be transmitted in a dynam ically changing network infrastructure. Especially in the domain of wireless low-power applications, the energy-efficiency and the prioritisation of communication tasks is critical. Several research areas deal with this issue. They optimising the respective hardware components as well as the protocols within the PHY, MAC or network layer. But for an optimised media transport in the topology also the data management and the task scheduling on the application layer is essential. Here, the key challenge is to minimise the data amount without decreasing the information quality. Related research work in the field of data aggregation and data fusion ofTers interesting techniques for an efficient data handling.In this paper, we discuss usual ways for data aggregation, in cluding the adapted communication process. We critically analyse the benefits in theory and compare these conceptual advantages with measured real-world results. The evaluation was done in two steps. The first one is based on simulation scenarios of typical WSN/SANET applications. In a second step, we implement a demonstrator platform for a respective real-world environment.The test bed configuration is similar to the simulation scenario and provides comparable data. Based on the results and the respective analysis, we propose feasible methods for optimising data aggregation techniques. We clarify, that these improvements are essential for an efficient usage in resource-limited, embedded sensor network environments.

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“…Asynchronous schemes are, by far, considered to be the most power efficient; and the most effective realization of asynchronous communication is by using a wake-up radio receiver [16][17] [18]. This device, which continuously listens the transmission medium for a wakeup signal, can be coupled with a main transceiver, to be used only when a wake up signal is detected.…”

Section: Introductionmentioning

confidence: 99%

An ultra low power high sensitivity wake-up radio receiver with addressing capability

Magno

Benini

2014

2014 IEEE 10th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob)

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In power-limited wireless devices such as wireless sensor networks, wearable components, and Internet of Things devices energy efficiency is a critical concern. These devices are usually battery operated and have a radio transceiver that is typically their most power-hungry block. Wake-up radio schemes can be used to achieve a reasonable balance among energy consumption, range, data receiving capabilities and response time. In this paper, a high-sensitivity low power wake-up radio receiver (WUR) for wireless sensor networks is presented. The wake-up radio is comprised of a fully passive differential RF-to-DC converter that rectifies the incident RF signal, a low-power comparator and an ultra low power microcontroller to detects the envelope of the on-off keying (OOK) wake-up data used as address. We designed and implemented a novel low power tunable wake up radio with addressing capability, a minimal power consumption of only 196nW and a maximum sensitivity of -55dBm and minimal wake up time of 130μs without addressing and around 1,6ms with 2byte addressing at 10Kbit/s data rate. The flexibility of the solution makes the wake up radio suitable for both power constrained low range application (such as Body Area Network) or applications with long range needs. The wake up radio can work also at different frequencies and the addressing capability directly on board helps reduce false positives. Experimental on field results demonstrate the low power of the solution, the high sensitivity and the functionality.

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Wake-Up-Receiver Concepts - Capabilities and Limitations

Cited by 12 publications

References 11 publications

Energy-efficient communication with wake-up receiver technologies and an optimised protocol stack

Energy-efficient communication with wake-up receiver technologies and an optimised protocol stack

Data aggregation and data fusion techniques in WSN/SANET topologies - a critical discussion

An ultra low power high sensitivity wake-up radio receiver with addressing capability

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