In what may turn out to be a precursor to the demise of wired connections, a scientist claims that ultimately, wireless networks won\u2019t have a capacity ceiling.\nResearchers have generally thought there was a maximum to the amount of data that could be sent within certain bandwidths, spaces and over a period, even using the best antennas. However, massive multiple input, multiple output (MIMO) antennas will provide for unlimited and thus vast streams of data to be communicated over the airwaves, says Emil Bj\u00f6rnson and his fellow researchers at Swedish Link\u00f6ping University. He says his group has discovered that capacity limit calculations used for the new antennas, expected to be used widely in 5G, are wrong.\n\nWhat are massive MIMO antennas?\nMassive MIMO antennas are basically bigger antenna arrays than are usually used. Instead of just placing a couple of antennas at each end of a link, a system called MIMO, as we see on Wi-Fi routers, for example, you simply scale significantly more antennas. It becomes an appropriately named massive MIMO.\nThe technology works by more efficiently processing and then sending data, along many signal paths, within the allocated bandwidth.\nLink\u00f6ping University researchers say, though, that the capacity limits being bandied around are moot.\n\u201cThere is no upper limit for how much data can be transferred,\u201d the researchers say. The wireless signal disturbance calculations that are used to project the amounts of data, called pilot contamination calculations, are flawed and can be junked, they say.\n"We can show that massive MIMO has unlimited capacity, both mathematically and with the aid of simulations," Bj\u00f6rnson says in an article on the school\u2019s website.\n\nI\u2019ve written about massive MIMO before: A university-originating massive MIMO used 128-antennas and claimed a 12-fold gain.\u00a0It delivers \u201cunprecedented\u201d bandwidth efficiency, the inventors said a year ago. Mobile network operator Sprint has announced that it, too, intends to use a 128-antenna massive MIMO setup for its 5G base stations that it is rolling out over the next couple of years. It reckons it will be delivering 10 times the capacity of LTE.\nTo get more capacity, add more antennas\nBj\u00f6rnson has some advice for engineers: Add more antennas.\n\u201cThe capacity increases without bound as the number of antennas increases,\u201d\u00a0he says in an IEEE abstract of his paper. It doesn\u2019t stop.\nShifting away from fixed internet lines\nWe\u2019re clearly seeing a consumer shift away from fixed lines in homes anyway. Analyst Keith Mallinson of WiseHarbor writes in this month's RCRWirelessNews that he thinks that down the road many consumers will move to wireless.\n\u201cLarge proportions of us who have a choice will soon plump for using cellular for all communications,\u201d he writes. Reasons include competitive costs and that quality is catching up to fixed internet for media streaming.\nAs an example, he cites in the article his 22-year-old daughter and roommates in their new British apartment-share who haven\u2019t bought a fixed-line broadband service and don\u2019t intend to. She\u2019s quite happy watching cord-cutting TV via good LTE on her smartphone, he explains, particularly as mobile solutions are not much more expensive (there) for them.\nAlong with that, and if Bj\u00f6rnson and his group's theory is correct, we could be seeing the beginning of the end for fixed-line internet.