Hi, I needed to use the PCF (Point coordinated functions) under the 802.11 for a project and was wondering if anybody has actually implemented this and integrated this with ns. If yes, would it be possible for me to use your code...... Thanks, -Vikram -- Department of ECE, Rice University | 713 348 3786 (O)| 713 664 5650(H) http://www.ece.rice.edu/~kanodia