Sprint's Xohm WiMax Network Debuts In Baltimore, Works Well
bsk_cw writes "Sprint's newly launched Xohm service is now offering America's first WiMax network. Computerworld's Brian Nadel went to Baltimore to try it out, and he reports that Xohm delivered data smoothly to a car moving at highway speeds, played YouTube videos flawlessly, and on average, pushed through more than 3Mbit/sec., compared with 1.3 Mbit/sec. for the AT&T network Brian used as a comparison. But right now, coverage is only planned in a few US cities; if Sprint isn't able to ramp up its coverage quickly, it may lose its advantage."
Xohm delivered data smoothly to a car moving at highway speeds, played YouTube videos flawlessly
Awesome!
Talking on a cell while driving is illegal, so I may as well watch YouTube!
Trolling is a art,
It'd take quite a bit more bandwidth to get me to visit Baltimore.
Sure, you can deliver 3Mb/sec wirelessly. But can you deliver 30,000Mb/sec?
See, the problem is that what I (and a good portion of the tech-using community) would like is to be able to access this bandwidth on demand, anywhere. Do you believe there would be 10,000 users in a wingle WiMax coverage area? If so, they are going to need 30,000Mb/sec to keep everyone working at this speed.
Microcells work for cell phones, but the rules are different.
So why will Sprint "lose its advantage" if it doesn't ramp up quickly? Seriously, is ATT or Comcast on the verge of offering some great new service that's going to make WiMax obsolete? Is there some competitor to Sprint that is going to build out first? I would love it if either of those possibilities were true, but the truth is that these companies are exceedingly conservative and slow to upgrade. Sprint could take the next decade doing a nationwide roll-out and probably not lose too much market share.
I've browsed through the WiMax standards, and they almost make ATM look elegant. A connection-base technology with no less than three incompatible encapsulations. Disconnected operation is simulated by establishing connections to a back-end server and running bridging software there.
I'm looking forward to the day when multiple implementations of WiMax are available and the interoperability issues start showing up...
Clearwire deployed a proprietary broadband wireless access network based on Nextnet's technology. Nextnet was later bought by Motorola, who is a major infrastructure vendor for WiMAX, and Clearwire, as part of their merger with Sprint Xohm, will be switching to WiMAX.
WiMAX has two major variants: those based on the IEEE 802.16-2004 standard (called 16d or fixed WiMAX) and those based on the newer IEEE 802.16e-2005 (called 16e or mobile WiMAX) standard. There have been some small, limited build-outs of 16d, but 16e is destined to be much bigger, and that's why this is a big deal.
Sprint has been the primary backer of 16e because they acquired a lot of 2.5 GHz unpaired spectrum from their Nextel acquisition. With the launch of Sprint's Baltimore network, they've proven that a large, citywide network can deliver on the promises of WiMAX. This is a huge step forward for mobile broadband wireless access.
Insert simplistic political, ideological, or personal proselytization here.