Approximately 27 times faster communication speed New technology to be up even in train moving fast

By~ Revengexx 14

It is not uncommon for the situation that the number of users per frequency band (bandwidth) is too large, the network is congested, and the communication speed does not come out. President Tanaka of auRequest regulatory authorities to allocate additional frequenciesCommunication carriers desperate to secure a band even a little even in domestic and overseas, starting to say that they are doing. However, we have developed a technology to improve the speed of wireless networks without requiring a new bandwidth, without infrastructure improvement.

A Bandwidth Breakthrough - Technology Review


To put it briefly, instead of sending packets one at a time, instead of sending the described algebraic equation for a series of packets, instead of requesting "send packets again" when a packet loss occurs , The part which lost at the receiving side is solved, so the communication volume is reduced. Since the equation required is simple and linear, the burden on the processing at the telephone, router, base station is a little, the development leader MProfessor uriel MedardI am talking.

In the current wireless network, it is the packet loss that is wasteful. Take the case of Boston City as an example, 3% of all packets are lost due to congestion and disturbance, and loss is 5% if it is communication on a train traveling at high speed like Shinkansen.

When a packet loss occurs, the receiving side requests the sending side "send the packet again because the packet is missing", and the sender retransmits the same packet. A network delay caused by one packet loss generates a new communication and the delay spreads snowball.

The technology of this time will not raise the transmission output without making a base station newly and will resolve the packet loss without developing a new infrastructure. According to Professor Muriel Medard of MIT Electronics Research Institute which we have developed, some companies have already licensed fundamental technology in the past few months. Although the contents are confidential matter, the license is done by MIT and California Institute of Technology's start-up "Code-On Technologies".

CODE ON
http://www.code-on.org/


Engineers usually question the practicality if they say "slight improvements" in laboratory tests, but if extraordinary improvements were seen, the results at the time of actual environment introduction Even if it is unknown, deserving attention, Rutgers University, the authority of communicationDipankar RaychaudhuriHe says.

A group of Professor Medard and others made experiments on the Wi - Fi network in MIT, where the packet loss occurs normally 2%, the communication can be performed almost losslessly and the communication speed is also 1 Mbps in the normal state, It increased to 16 Mbps.

Limited express between New York and BostonAcela ExpressWe also conducted experiments within. Although Acela is notoriously infamous as not being connected to the net, it seems that there was a form of passengers struggling without connecting to the net at the time of the experiment, but the professor and the students were able to enjoy the YouTube videos. Although the communication speed in the normal time of Acelera is about 0.5 Mbps, at this time it reached 13.5 Mbps of about 27 times.

Likewise, the proxy server was tested in the Amazon cloud. IP traffic will be sent to Amazon to be encoded and decoded by an application on the terminal, but as a result, there will be great merit that technology can be incorporated directly into communication equipment and routers, Professor Medard I am talking. Dipankar Raychaudhuri of Rutgers University, the authority of communication, said, "This research will be an important breakthrough to remarkably improve the situation of people connecting to the net in a poor communication environment." I will.

The US Federal Communications Commission predicts that the available wireless bandwidth will run out in two to three years, but NBC Universal's vice president Sheau Ng Research and Development said that this technology will be deployed on a large scale as expected I think that this bandwidth crisis can be avoided.

By the way, Cisco SystemsAnnounces a report that mobile traffic will increase by 18 times by 2016Doing it,Bell LaboratoriesIs forecasting to increase by 25 times as well.

Professor Medard says the current state of traffic "Before" more bandwidth resources ", inefficient current situation should be improved."