# cellular

Published articles for cellular.

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## What Is an AAU in Cellular Networks?

DevFeed: [What Is an AAU in Cellular Networks?](<https://devfeed.tech/articles/what-is-an-aau-in-cellular-networks-40173.md>)

Original publisher: [Read original article](<https://blog.j2sw.com/netops/wireless/active-antenna-unit-aau-cellular/>)

Author: j2sw

Published: 2026-07-22T19:23:00Z

Content type: tutorial

Language: en

Sources: [Justin Wilson (j2sw)](<https://devfeed.tech/sources/justin-wilson-j2sw.md>)

Topics: [Networks](<https://devfeed.tech/topics/networks.md>), [5G](<https://devfeed.tech/topics/5g.md>), [Hardware](<https://devfeed.tech/topics/hardware.md>)

Tags: [5g](<https://devfeed.tech/tags/5g.md>), [aau](<https://devfeed.tech/tags/aau.md>), [cellular](<https://devfeed.tech/tags/cellular.md>), [fiber](<https://devfeed.tech/tags/fiber.md>), [hardware](<https://devfeed.tech/tags/hardware.md>), [installation](<https://devfeed.tech/tags/installation.md>), [lte](<https://devfeed.tech/tags/lte.md>), [massive-mimo](<https://devfeed.tech/tags/massive-mimo.md>), [networks](<https://devfeed.tech/tags/networks.md>), [signal](<https://devfeed.tech/tags/signal.md>), [telecommunicationds](<https://devfeed.tech/tags/telecommunicationds.md>), [tower](<https://devfeed.tech/tags/tower.md>), [wireless-infrastructure](<https://devfeed.tech/tags/wireless-infrastructure.md>), [wireless-networking](<https://devfeed.tech/tags/wireless-networking.md>)

### AI overview

This article explains Active Antenna Units (AAUs) in cellular networks. It describes how AAUs integrate antennas and radio components, use fiber and power instead of long coaxial runs, reduce RF loss, and support technologies such as Massive MIMO. It also discusses installation considerations, including greater weight and higher hardware cost.

### Source excerpt

A little off the beaten path on this one. We are diving into a big part of a Cellular tower deployment. Many sites now use an Active Antenna Unit, or AAU. The radio and the antenna are built into the same enclosure. An AAU combines the antenna, radio transceivers, power amplifiers, and low-noise amplifiers into ... Read more The post What Is an AAU in Cellular Networks? appeared first on Justin Wilson (j2sw).

## Turing Machines and Conway's Dreams

DevFeed: [Turing Machines and Conway's Dreams](<https://devfeed.tech/articles/turing-machines-and-conway-s-dreams-40215.md>)

Original publisher: [Read original article](<https://www.jeremykun.com/2011/06/30/turing-machines-and-conways-dreams/>)

Published: 2011-06-30T20:50:04Z

Content type: tutorial

Language: en

Sources: [Jeremy Kun](<https://devfeed.tech/sources/jeremy-kun.md>)

Topics: [Automaton](<https://devfeed.tech/topics/automaton.md>)

Tags: [cellular](<https://devfeed.tech/tags/cellular.md>), [cellular-automata](<https://devfeed.tech/tags/cellular-automata.md>), [computability-theory](<https://devfeed.tech/tags/computability-theory.md>), [computational-complexity](<https://devfeed.tech/tags/computational-complexity.md>), [conway](<https://devfeed.tech/tags/conway.md>), [infinite](<https://devfeed.tech/tags/infinite.md>), [life](<https://devfeed.tech/tags/life.md>), [mathematics](<https://devfeed.tech/tags/mathematics.md>), [patterns](<https://devfeed.tech/tags/patterns.md>), [period](<https://devfeed.tech/tags/period.md>), [programming](<https://devfeed.tech/tags/programming.md>), [recursion](<https://devfeed.tech/tags/recursion.md>), [theory](<https://devfeed.tech/tags/theory.md>), [turing-machine](<https://devfeed.tech/tags/turing-machine.md>), [turing-machines](<https://devfeed.tech/tags/turing-machines.md>)

### AI overview

The article examines Conway's Game of Life patterns that do not stabilize, including Gosper's glider gun and puffers that produce continuing activity. It connects these patterns to computability, explaining that infinite looping is necessary for Turing-complete computation.

### Source excerpt

Additional Patterns Last time we left the reader with the assertion that Conway's game of life does not always stabilize. Specifically, there exist patterns which result in unbounded cell population growth. Although John Conway's original conjecture was that all patterns eventually stabilize (and offered $50 to anyone who could provide a proof or counterexample), he was proven wrong. Here we have the appropriately named glider gun, whose main body oscillates, expelling a glider once per period.