[Tinyos-2-commits] CVS: tinyos-2.x/doc/txt tep124.txt,1.9,1.10

[Omprakash Gnawali]

Update of /cvsroot/tinyos/tinyos-2.x/doc/txt
In directory ddv4jf1.ch3.sourceforge.com:/tmp/cvs-serv18787

Modified Files:
	tep124.txt 
Log Message:
rev2

Index: tep124.txt
===================================================================
RCS file: /cvsroot/tinyos/tinyos-2.x/doc/txt/tep124.txt,v
retrieving revision 1.9
retrieving revision 1.10
diff -C2 -d -r1.9 -r1.10
*** tep124.txt	31 Jan 2009 06:47:08 -0000	1.9
--- tep124.txt	7 Feb 2009 22:55:17 -0000	1.10
***************
*** 42,46 ****
  is often fine-tuned using different mechanisms.
  
! Link quality estimates obtained using LEEP are often used as a
  bootstrapping values in the link quality table; data transmission
  statistics can later be used to make these estimates more accurate.
--- 42,46 ----
  is often fine-tuned using different mechanisms.
  
! Link quality estimates obtained using LEEP are often used as
  bootstrapping values in the link quality table; data transmission
  statistics can later be used to make these estimates more accurate.
***************
*** 54,63 ****
  In a node pair (A,B), with B as the node of reference, in-bound link
  quality is a value in the range of 0 to 255 that describes the quality
! of the link from A to B estimated by B by counting the successfully
! received packets from A among all the packets transmitted by A. Thus,
! in-bound link quality is the empirical probability that a packet will
! be successfully received on a given link. A value of 255 represents a
! probability of 1 and a value of 0 represents a probability of 0 of
! successfully receiving a packet on a given link.
  
  2.2 Out-bound Link Quality
--- 54,63 ----
  In a node pair (A,B), with B as the node of reference, in-bound link
  quality is a value in the range of 0 to 255 that describes the quality
! of the link from A to B estimated by B as the fraction of successfully
! received packets from A. Thus, in-bound link quality is the empirical
! probability that a packet will be successfully received on a given
! link. A value of 255 represents a probability of 1 and a value of 0
! represents a probability of 0 of successfully receiving a packet on a
! given link.
  
  2.2 Out-bound Link Quality
***************
*** 76,85 ****
  provides a way to exchange sufficient information to compute in-bound
  and out-bound link qualities. These two link qualities can be used to
! compute the bi-directional link quality. One popular way to define the
! bi-directional link quality between a node pair (A,B) as the
! probability that a packet transmitted by A will be successfully
! received and acknowledged by B. This approach computes the
! bi-directional link quality of a node pair (A,B) as the product of the
! link quality of (A,B) and (B,A).
  
  
--- 76,82 ----
  provides a way to exchange sufficient information to compute in-bound
  and out-bound link qualities. These two link qualities can be used to
! compute the bi-directional link quality. Routing protocols often
! compute the bi-directional link quality of a node pair (A,B) as a
! function (product, min, etc.) of the link quality of (A,B) and (B,A).