Fig 1.
IEEE 802.15.4 superframe structure.
Fig 2.
CSTP-MAC methodological approach.
Fig 3.
CSTP-MAC network topology (a) For the patient(s) in the medical field, and (b) For home, industry, agriculture, and logistics.
Table 1.
Traffic status and prioritization scheme.
Fig 4.
Modified IEEE 802.15.4 MAC frame format (with data priority for CSTP-MAC).
Fig 5.
CSTP-MAC data service with data priority request.
Fig 6.
CSTP-MAC algorithm backoff time-slots vs IEEE 802.15.4 binary backoff exponential algorithm backoff time-slots.
Table 2.
Backoff Exponential (BE) parameters for BEB and CSTP-MAC for slotted CSMA/CA.
Table 3.
CSTP-MAC algorithm mathematical models.
Table 4.
Eqs 5-9 shows the CSTP-MAC mathematical model for all five (5) backoffs.
Fig 7.
CSTP-MAC flowchart for slotted CSMA/CA.
Fig 8.
CSTP-MAC backoff period computation mechanism (CSTP-MAC–BPCM).
Table 5.
Simulation configuration and parameters.
Fig 9.
Packet delivery ratio (PDR)–HPD vs LPD.
Fig 10.
Power consumption–HPD vs LPD.
Fig 11.
Throughput–HPD vs LPD.
Fig 12.
Latency–HPD vs LPD.
Fig 13.
Radio duty cycle (RDC)–HPD vs LPD.
Fig 14.
Packet delivery ratio (PDR).
Fig 15.
Power consumption.
Fig 16.
Throughout.
Fig 17.
Latency.