The Scientific World Journal / 2014 / Article / Fig 3

Research Article

Design and Performance Evaluation of a Distributed OFDMA-Based MAC Protocol for MANETs

Figure 3

An example of operational procedure for a node to detect and treat an LET2. (In the following figures, we use frame time units. A circle represents the transmission range of a node located at the center of the circle. The solid arrows represent the intended direction of a frame and the dotted arrows represent the propagation of a frame to the nodes that are not the destinations of the frame. PDU denotes data sent through PDU bin .)
(a) At time
(b) At time
(c) At time