Increasing wireless network speed by 1000%, by replacing packets with algebra
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Re: Increasing wireless network speed by 1000%, by replacing packets with algebra
#2The linkbaity title links to a neat, proprietary way to reduce wireless packet loss.
Re: Increasing wireless network speed by 1000%, by replacing packets with algebra
#3Summary: TCP throughput drops dramatically when packet loss is present. This technique uses forward error correction to compensate for packet loss, resulting in higher effective throughput over lossy links. Many WiFi and cellular connections are lossy, so this would be helpful in those cases.
They haven't improved the underlying link rate at all. In fact, the FEC overhead is going to reduce the effective link rate. However, in some edge-case high packet loss scenarios, the reduced packet loss will more than make up for the reduced effective link rate.
Re: Increasing wireless network speed by 1000%, by replacing packets with algebra
#4See the original discussion & better article at https://news.ycombinator.com/item?id=4686743
Re: Increasing wireless network speed by 1000%, by replacing packets with algebra
#5This is one of those posts where the comments on the site are better than the article submitted.
It also means less power consumption on mobile phones. There will be no need to increase signal power to get better speed or voice quality.
Re: Increasing wireless network speed by 1000%, by replacing packets with algebra
#6TL;DR They are using error correcting codes across packets to limit the impact of losing some.
Re: Increasing wireless network speed by 1000%, by replacing packets with algebra
#7Summary: TCP throughput drops dramatically when packet loss is present. This technique uses forward error correction to compensate for packet loss, resulting in higher effective throughput over lossy links. Many WiFi and cellular connections are lossy, so this would be helpful in those cases. They haven't improved the underlying link rate at all. In fact, the FEC overhead is going to reduce the effective link rate. H…
Help me out: Surely FEC over wireless can't be new. Why is this worth writing about?
Re: Increasing wireless network speed by 1000%, by replacing packets with algebra
#8Summary: TCP throughput drops dramatically when packet loss is present. This technique uses forward error correction to compensate for packet loss, resulting in higher effective throughput over lossy links. Many WiFi and cellular connections are lossy, so this would be helpful in those cases. They haven't improved the underlying link rate at all. In fact, the FEC overhead is going to reduce the effective link rate. H…
Help me out: Surely FEC over wireless can't be new. Why is this worth writing about?
http://en.wikipedia.org/wiki/Forward_error_correction#Low-de... implies that they are used in 802.11n (i have no idea what is new in this article)
Re: Increasing wireless network speed by 1000%, by replacing packets with algebra
#9Summary: TCP throughput drops dramatically when packet loss is present. This technique uses forward error correction to compensate for packet loss, resulting in higher effective throughput over lossy links. Many WiFi and cellular connections are lossy, so this would be helpful in those cases. They haven't improved the underlying link rate at all. In fact, the FEC overhead is going to reduce the effective link rate. H…
So, "benchmarks very favorable in mostly artificial scenario".
Re: Increasing wireless network speed by 1000%, by replacing packets with algebra
#10Captivating title...