Simtech Development

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Recently, we came across this great paper (link, free PDF) about modeling the impact of multipath on Semtech's LoRa modulation.  Specifically, it models Rayleigh flat fading, which is observed in urban and indoor use-cases.  We had just finished testing LoRaWAN vs. Haystack’s LoRa XR2 in an environment with heavy multipath interference (an airport parking garage).  The results were so one-sided that we wanted to find any research that might either validate our results or, potentially, shed light on something we were doing wrong in the experiment.  Fortunately, we found just the paper, and it corroborates perfectly with the experimental results we achieved.

Research and Experimentation of 
LoRa in Heavy Multipath

[Note: This work was written and self-published in manuscript form on <a href="http://pllel.com" target="_blank">pllel.com</a> in summer 2018 with <a href="http://www.pllel.com/industries/wp-content/uploads/180810-forkonomy-v3.pdf" target="_blank">last revision 10th August</a>. Figures come from tweets, original manuscript and presentation slides from <a href="https://www.youtube.com/watch?v=d_7f16_29Mc" target="_blank">ETC Summit Forkonomy talk</a> in September 2018. <a href="https://hackernoon.com/forkonomy-revisited-where-are-they-now-73fbfbec6b4d" target="_blank">A follow-up commentary was just published</a>. TLDRs in video and tweet form, scroll down for the full text.]

Towards an Analytical Discipline of Forkonomy (Summer 2018)

This article is the followup to “Beginner’s Guide to Blockchain: Explaining it to a 5 year old”. If you haven’t checked out the first part yet, you can do that <a href="https://hackernoon.com/beginners-guide-to-blockchain-explaining-it-to-a-5-years-old-772caac6ae97" target="_blank">here</a>.

Beginner’s Guide to Blockchain — Explaining it to a 6 Year Old

In the wake of the recent and most (in)significant push to change Bitcoin’s Proof-of-Work, I thought it would be a good opportunity to score some more brownie points from the community by laying it to rest. I’m going to discuss the broader topic of hardware specialization (“ASIC Resistance”), the technical and logical flaws in trying to resist specialized hardware, some history around this, and then I’ll touch on what I hope to be a short lived (and fishy) motion for a Proof-of-Work algorithm change that nobody wants besides two and a half people.

ASIC Resistance is Nothing but a Blockchain Buzzword

One of the most important aspects of any business is marketing. Whether this comes in the form of selling the earliest releases of the product or developing a vibrant community to encourage further public adoption, marketing is vital to the future success of any company. Unfortunately, we believe that this is one area where many recent blockchain-based companies have fallen short.

Decentralization and Marketing

We’re sure you remember it from high school math, but allow me to remind you. The bisection method. For example, you are looking for where ⅓ is on the decimal scale. You start with the firm knowledge that it is somewhere between 0 and 1. On the next step you “learn” ⅓ is less than ½, so you effectively halved the zone of the search — the answer is now in between 0 and ½&nbsp;. The beauty of the method is that very few iterations will take you to the answer with an acceptable error range.

On Unprecedented Growth

Want To Know What Orange’s New LPWAN Strategy Is?

I’ve written before about Low Power Wide Area Networks (LPWAN’s) and the pros and cons of <a href="http://bit.ly/2mTXw7j">cellular</a>-based LPWAN’s as well as the same for those non-cellular technologies operating in unlicensed radio spectrum.

This IoT Technology Pretends To Be Something It’s Not

By <a href="https://www.linkedin.com/in/ted-myers-0933795" target="_blank">Ted Myers</a>, CTO and Co-founder of Ingenu

LPWA IoT Technology Makers Analysis

Reflecting back to the Hackapost hackathon, I wanted to share a couple elements on how the technology stack worked.

Hackapost: how hackathons can be the best learning tool under the sun

This article is the second chapter of a series about web decentralization. Here we are going to focus on how to store files. I believe storage is the most advanced field when speaking about decentralization because it relies on mature and robust technologies: peer-to-peer and cryptography. If you are an application developer (web or mobile), you can already replace your storage layer by a decentralized one.

A state of the art of decentralized web — Part 2

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SIMTECH DEVELOPMENT

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SIMTECH DEVELOPMENT

simtechdev.com

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Simtech Development's Related Companies

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