-The link quality between a directed node pair (A,B) is the probability
-that a packet transmitted by A will be successfully received and
-acknowledged by B. The bidirectional link quality of an undirected
-node pair (A,B) is the product of the link quality of (A,B) and
-(B,A). This definition assumes independent link losses. It also
-includes the case when the link quality of (A,B) and (B,A) are
-different; this can occur due to local interference or noise.
+LEEP does not define or compute bi-directional link quality. LEEP
+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).
+