Wednesday, June 14, 2017
Thursday, March 30, 2017
How Reggaetón Exploded All Over Cuba Without the Internet | WIRED
YOU CAN'T VISIT Cuba and not hear reggaetón. The eclectic mix of salsa, hip-hop and electronica blasts from shops, cars and bike taxis. And despite government censorship and limited internet access, the genre exploded in popularity thanks to "el paquete," a grassroots distribution system that relies on nothing more than hard drives, thumb drives, and old-fashioned hand delivery.
Thursday, January 5, 2017
Real-time Distributed MIMO Systems
Recent years have seen a lot of work in moving distributed MIMO from theory to practice. While this prior work demonstrates the feasibility of synchronizing multiple transmitters in time, frequency, and phase, none of them deliver a full-fledged PHY capable of supporting distributed MIMO in real-time. Further, none of them can address dynamic environments or mobile clients. Addressing these challenges, requires new solutions for low-overhead and fast tracking of wireless channels, which are the key parameters of any distributed MIMO system. It also requires a software-hardware architecture that can deliver a distributed MIMO within a full-fledged 802.11 PHY, while still meeting the tight timing constraints of the 802.11 protocol. This architecture also needs to perform coordinated power control across distributed MIMO nodes, as opposed to simply letting each node perform power control as if it were operating alone. This paper describes the design and implementation of MegaMIMO 2.0, a system that achieves these goals and delivers the first real-time fully distributed 802.11 MIMO system.
Friday, December 30, 2016
Multi-Use Radio Service - Wikipedia
In the United States, the Multi-Use Radio Service (MURS) is an unlicensed two-way radio service similar to Citizens Band (CB). Established by the U.S.Federal Communications Commissionin the fall of 2000, MURS created a radio service allowing for unlicensed (Part 95) operation, with a power limit of 2 watts. The FCC formally defines MURS as "a private, two-way, short-distance voice or data communications service for personal or business activities of the general public." MURS stations may not be connected to the public telephone network, may not be used for store and forward operations, and radio repeaters are not permitted.
In 2009 Industry Canada (IC) established a five year transition plan which would have permitted the use of MURS in Canada starting June 2014.[1]In August 2014 IC announced a deferral of MURS introduction, as "the Department does not feel that the introduction of MURS devices in Canada is warranted at this time, and has decided to defer the introduction of MURS devices in Canada until a clearer indication of actual need is provided by Canadian MURS advocates and/or stakeholders..".[2]
Dead Drops
The purpose of such a dead drop is described in The Dead Drops Manifesto by Aram Bartholl:
The Dead Drops Manifesto
Dead Drops is an anonymous, offline, peer to peer file-sharing network in public space. Anyone can access a Dead Drop and everyone may install a Dead Drop in their neighborhood/city. A Dead Drop must be public accessible. A Dead Drop inside closed buildings or private places with limited or temporary access is not a Dead Drop. A real Dead Drop mounts as read and writeable mass storage drive without any custom software. Dead Drops don't need to be synced or connected to each other. Each Dead Drop is singular in its existence. A very beautiful Dead Drop shows only the metal sheath enclosed type-A USB plug and is cemented into walls.You would hardly notice it. Dead Drops don't need any cables or wireless technology. Your knees on the ground or a dirty jacket on the wall is what it takes share files offline. A Dead Drop is a naked piece of passively powered Universal Serial Bus technology embedded into the city, the only true public space. In an era of growing clouds and fancy new devices without access to local files we need to rethink the freedom and distribution of data. The Dead Drops movement is on its way for change!
Free your data to the public domain in cement! Make your own Dead Drop now! Un-cloud your files today!!!
Aram Bartholl 2010