Embracing wireless interference: Analog network coding

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Embracing wireless interference: Analog network coding (2007)

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by Sachin Katti , Shyamnath Gollakota , Dina Katabi

Venue:	in ACM SIGCOMM
Citations:	353 - 10 self

BibTeX

@INPROCEEDINGS{Katti07embracingwireless,
    author = {Sachin Katti and Shyamnath Gollakota and Dina Katabi},
    title = {Embracing wireless interference: Analog network coding},
    booktitle = {in ACM SIGCOMM},
    year = {2007},
    pages = {397--408},
    publisher = {MIT}
}

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Abstract

Traditionally, interference is considered harmful. Wireless networks strive to avoid scheduling multiple transmissions at the same time in order to prevent interference. This paper adopts the opposite approach; it encourages strategically picked senders to interfere. Instead of forwarding packets, routers forward the interfering signals. The destination leverages network-level information to cancel the interference and recover the signal destined to it. The result is analog network coding because it mixes signals not bits. So, what if wireless routers forward signals instead of packets? Theoretically, such an approach doubles the capacity of the canonical relay network. Surprisingly, it is also practical. We implement our design using software radios and show that it achieves significantly higher throughput than both traditional wireless routing and prior work on wireless network coding. 1.

Keyphrases

analog network wireless interference prior work analog network coding traditional wireless routing canonical relay network network-level information interfering signal software radio wireless router wireless network opposite approach picked sender multiple transmission

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