Preliminary study of superregenerative wake-up receiver for WBANs

Petäjäjärvi, Juha; Karvonen, Heikki; Vuohtoniemi, Risto; Hämäläinen, Matti; Huttunen, Martti

doi:10.1109/ismict.2014.6825210

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…In this field, the SR principle has been used in several implementations of receivers and transceivers as, for instance, in [55]- [57]. The SR receiver has also been used as an auxiliary wake-up receiver for body area networks [58]. The idea is to use a low power consumption receiver to detect the existence of a transmission and switch to the main receiver for actual demodulation.…”

Section: Current Applicationsmentioning

confidence: 99%

Superregeneration Revisited: From Principles to Current Applications

et al. 2020

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Section: Current Applicationsmentioning

confidence: 99%

Superregeneration Revisited: From Principles to Current Applications

et al. 2020

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“…Each solution has specific strengths and weaknesses and there is not a single one dominating currently [4]. One of the WUR architectures is based on the use of superregenerative oscillator (SRO) [6][7][8]. Although the superregenerative principle was proposed by E. H. Armstrong already in 1922 [9], its utilization in WURs, in general, and in WBAN applications in particular introduces multiple new design challenges.…”

Section: Introductionmentioning

confidence: 99%

Loose synchronization method for low-power superregenerative wake-up receiver

Petäjäjärvi

Mikhaylov

Karvonen

et al. 2015

2015 9th International Symposium on Medical Information and Communication Technology (ISMICT)

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The use of wake-up receivers (WURs) in wireless body area networks (WBAN) has remarkable potential to improve energy efficiency. During the recent years, multiple WUR designs and architectures have been therefore proposed for WBANs and wireless sensor networks (WSN). Superregenerative oscillator (SRO) based architecture is inherently sensitive, which makes it an attractive choice for a WUR. It is known that to improve the selectivity and to reduce the energy consumption the quench frequency should be the same or in the order of data rate. Therefore, synchronization is required. To achieve this with lowpower consumption, pulse width modulation is used to encode transferred address information. The decoder measures the pulse widths and uses uncertainty interval that enables loose synchronization between the transmitter and the receiver. The decoder is implemented and its power consumption is measured. Decoder operation is verified with simulations using the hardware description language simulator.

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“…In such protocol's case, node's radios are waken-up to listen the channel, asynchronously or synchronously, to detect possible transmissions targeted for them, or to transmit their own data packets. In recent years, the wake-up radio (WUR) based approaches have gained attention among researchers [2,9,11,13]. In that case the nodes have two radios: a wake-up radio and main data radio.…”

Section: Introductionmentioning

confidence: 99%

Energy Efficient IR-UWB WBAN using a Generic Wake-up Radio based MAC Protocol

Karvonen

Iinatti

Petäjäjärvi

et al. 2014

Proceedings of the 9th International Conference on Body Area Networks

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This paper addresses the energy efficiency of impulse radio (IR-UWB) based wireless body area networks (WBAN). An energy efficiency optimization model is proposed for the IR-UWB WBAN which is based on a generic wake-up radio (WUR) based medium access control (GWR-MAC) protocol. GWR-MAC takes advantage of the WUR to decrease the network energy consumption especially in applications with rare events. Energy efficiency gains are enabled by using a dual-radio approach, in which a specific WUR is used to trigger the wake-up of main data radio. Proposed analytical energy efficiency model enables to compare the GWR-MAC based WBAN energy consumption with the duty cycle radio based approach. Results clearly show the GWR-MAC potential to improve the energy efficiency of IR-UWB based WBAN.

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Preliminary study of superregenerative wake-up receiver for WBANs

Cited by 3 publications

References 13 publications

Superregeneration Revisited: From Principles to Current Applications

Superregeneration Revisited: From Principles to Current Applications

Loose synchronization method for low-power superregenerative wake-up receiver

Energy Efficient IR-UWB WBAN using a Generic Wake-up Radio based MAC Protocol

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