Performance Evaluation of Broadcast Mac and Aloha Mac Protocol for Underwater Wireless Sensor Networks

Broadcast MAC (BMAC) is simple yet very efficient MAC protocol for Underwater Wireless Sensor Network (UWSN). BMAC senses the channel and if channel is free then data is transmitted. It is much desired protocol for some low traffic networks. Here we carry out its evaluation. We also evaluate ALOHA protocol which is also for UWSN. There are various versions of ALOHA protocol available but here we are considering the pure ALOHA where the sender just sends the data whenever it wants. BMAC and ALOHA, both possess simplicity in their implementation as well as in their working and hence we evaluate both of them together in similar simulation scenario. We compared the performance of these two Underwater MAC protocols on the basis of bit-rate and number of nodes participating in the network. On completing the evaluation process we found that B-MAC performed well in the simulation scenario that we had designed.