Table 8 Analysis of TDMA with Frame Slotted Aloha based Slot allocation
MAC protocol | Data reliability | Energy consumption | Remarks |
|---|---|---|---|
UW-MACs [28] | Average | Low | Does not different between low and high threshold values and drops emergency data if other types of sensors occupy slots. Each node waits to transmit data in its predefined time slot |
LPDQ [58] | Low | High | Each sensor transmits an ARP and waits for the channel which increases delay. The sensors re-transmit the packet, and wakes up periodically to verify any activity in the network which consumes a higher energy |
PG-MAC [59] | Low | High | The sensors follow the control header and then data channels which consume a higher energy of BMSs. No priority is defined for low and high threshold of vital signs |