A Power-Harvesting Pad-Less Millimeter-Sized Radio

Tabesh, Maryam; Dolatsha, Nemat; Arbabian, Amin; Niknejad, Ali M.

doi:10.1109/jssc.2014.2384034

Cited by 82 publications

(60 citation statements)

References 23 publications

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“…However, scaling wireless devices from billions to potentially trillions (as envisioned by some forecasts [2], [3]) requires orders of magnitude reduction in costs and often size, both of which are dominated by external components such as batteries and crystal oscillators. This has led to significant recent interest in building miniature radios that do not possess any external components [4]- [9]. For example, the ant-radios of [9] integrate a full wireless communication system, including the full transceiver, antenna, and clock, on a single CMOS chip of size 4.4 mm 2 .…”

Section: Introductionmentioning

confidence: 99%

“…This has led to significant recent interest in building miniature radios that do not possess any external components [4]- [9]. For example, the ant-radios of [9] integrate a full wireless communication system, including the full transceiver, antenna, and clock, on a single CMOS chip of size 4.4 mm 2 . A small crystal oscillator, on the other hand, is around 1.9 mm 2 , which is about half the size of the entire system.…”

Section: Introductionmentioning

confidence: 99%

“…The authors are with the Department of Electrical Engineering, Stanford University, Stanford, CA 94305 USA (e-mail: shaviv@stanford.edu; aozgur@stanford.edu, arbabian@stanford.edu). The ant-radios of [9]. and assembly.…”

Section: Introductionmentioning

confidence: 99%

“…We study the zero-error capacity under both types of timing imperfections, and obtain optimal zeroerror codes for some cases. Our results show that, as opposed to common practice, in the presence of clock drift it is highly suboptimal to try to learn and track the clock frequency at the receiver; rather, one can design codes that come close to the performance of perfectly synchronous communication systems without any clock synchronization at the receiver.Index Terms-Asynchronous communication, clock drift, jitter, crystal-free radios 1 The width of the transmitted pulse is much shorter than the duration of the bin in [9].…”

mentioning

confidence: 99%

“…Index Terms-Asynchronous communication, clock drift, jitter, crystal-free radios 1 The width of the transmitted pulse is much shorter than the duration of the bin in [9].…”

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confidence: 99%

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Communication with Crystal-Free Radios

Shaviv

Özgür

Arbabian

2018

IEEE Trans. Commun.

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We consider a communication channel where there is no common clock between the transmitter and the receiver. This is motivated by the recent interest in building system-onchip radios for Internet of Things applications, which cannot rely on crystal oscillators for accurate timing. We identify two types of clock uncertainty in such systems: timing jitter, which occurs at a time scale faster than the communication duration (or equivalently blocklength); and clock drift, which occurs at a slower time scale. We study the zero-error capacity under both types of timing imperfections, and obtain optimal zeroerror codes for some cases. Our results show that, as opposed to common practice, in the presence of clock drift it is highly suboptimal to try to learn and track the clock frequency at the receiver; rather, one can design codes that come close to the performance of perfectly synchronous communication systems without any clock synchronization at the receiver.Index Terms-Asynchronous communication, clock drift, jitter, crystal-free radios 1 The width of the transmitted pulse is much shorter than the duration of the bin in [9].

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

“…Index Terms-Asynchronous communication, clock drift, jitter, crystal-free radios 1 The width of the transmitted pulse is much shorter than the duration of the bin in [9].…”

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confidence: 99%

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