Table 7 Analysis of Slotted Aloha based slot allocation MAC protocols
MAC protocol | Data reliability | Energy consumption | Remarks |
|---|---|---|---|
HR-MAC [55] | High | Average | The energy consumption is minimum and allocates error-free slots to BMSs. The drawback is that it cannot decide a slot allocation if the same types of two emergency data occurred at the same time |
A-MAC [56] | Low | High | The contention-based slot allocation and does not specify the patient’s data in this scheme. The data reliability is reduced if more BMSs are added to network |
MS-MAC [57] | Low | High | The suggested protocol does not discuss patient’s data and consumes a higher energy of BMSs during contention to access slot. The data reliability decreases if more BMSs contend to access a slot |