For TDMA slot assignment DNIB  algorithm is used and for FDMA slot assignment, HyMAC algorithm is used.
Comparative simulations of EE-MAC and HyMAC are run on nS-2.
From the results obtained, it is evident that the performance of the EE-MAC is better than HyMAC in terms of energy consumption, the average delay for a node to deliver the packet, and packet delivery ratio.
Figures 4, 5, and 6 show the comparison of energy consumption by HyMAC and EE-MAC for all the three cases.
It can be observed from the figures that energy consumed by EE-MAC is lesser than that consumed by HyMAC in all scenarios.
Average delay taken by the node to deliver the data packet is calculated for both EE-MAC and HyMAC protocols in all 3 cases.
When the number of senders increase, the delay also increases for HyMAC because of heavy traffic.
Finally the packet delivery ratio is calculated for both EE-MAC and HyMAC protocols by using the following equation