An adpative FEC algorithm for Mobile Wireless Networks. Ahn, J. & Heidemann, J. Technical Report USC/Information Sciences Institute, March, 2002.
An adpative FEC algorithm for Mobile Wireless Networks [link]Paper  abstract   bibtex   
Wireless mobile networks tend to drop a large portion of packets due to propagation errors. To improve reliability over noisy wireless channels, wireless networks can employ forward error correction (FEC) techniques. Static FEC algorithms, however, can degrade the performance by poorly matching their overhead to the degree of the underlying channel error, especially when the channel path loss rate fluctuates widely. This paper investigates the benefits of an adaptable FEC mechanism for wireless networks with severe packet loss. We show that our adaptive FEC technique improves the performance by dynamically tuning FEC strength to the current amount of wireless channel loss. We quantify these benefits through a hybrid simulation integrating packet-level simulation with bit-level details and validate the simulation model through experimentation.
@TechReport{Ahn02a,
	  author = 	"Jong-Suk Ahn and John Heidemann",
	  title = 	"An adpative {FEC} algorithm for Mobile Wireless Networks",
	  institution = 	"USC/Information Sciences Institute",
	  year = 		2002,
	sortdate = "2002-03-01",
	  month =		mar,
	  location =	"johnh: pafile",
	  location =	"johnh: folder: xxx",
	  keywords =	"adaptive FEC, motes",
	project = "conser, ilense",
	jsubject = "chronological",
	  url =		"http://www.isi.edu/%7ejohnh/PAPERS/Ahn02a.html",
	  pdfurl =	"http://www.isi.edu/%7ejohnh/PAPERS/Ahn02a.pdf",
  	otherurl = "ftp://ftp.isi.edu/isi-pubs/tr-555.pdf",
	  copyrightholder = "authors",
	  myorganization = 	"USC/Information Sciences Institute",
	  abstract = "
  Wireless mobile networks tend to drop a large portion of
  packets due to propagation errors.  To improve reliability over noisy
  wireless channels, wireless networks can employ forward error
  correction (FEC) techniques. Static FEC algorithms, however, can
  degrade the performance by poorly matching their overhead to the
  degree of the underlying channel error, especially when the channel
  path loss rate fluctuates widely.  This paper investigates the
  benefits of an adaptable FEC mechanism for wireless networks with
  severe packet loss.  We show that our adaptive FEC technique improves
  the performance by dynamically tuning FEC strength to the current
  amount of wireless channel loss. We quantify these benefits through a
  hybrid simulation integrating packet-level simulation with bit-level
  details and validate the simulation model through experimentation.
  ",
}

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