Table 1 Comparison of IEEE 802.15.4 and 802.15.6 based on Superframe
Characteristics | IEEE 802.15.4 | IEEE 802.15.6 |
|---|---|---|
Domain-specific task | Sensors applications to monitor and detect an events from environments like home temperature monitoring, pipeline leakage detection, and battlefield, etc | Specially designed for healthcare related domains |
Nature of data | Homogenous | Heterogeneous |
Network deployment range | 10–100 m | 3–6 m |
Network coverage | Scalable | Medium |
Support of min-to-max sensors | 10–65,000 | 3–256 |
Energy consumption | 20–35 mW | 0.01–40 mW |
Frequency band | ISM | ISM and other approved by medical authorities for in/on-body such as UWB PHY |
Data transmission medium | Air | Air, on-body, in-body |
Data transmission rate | 20Â kb/s to max 250Â kb/s | 50Â kb/s to Max 10Â mb/s |
Safety precautions for deployed environment | Varies situation to situation but uses SAR in WBAN | Yes, use SAR for measuring of temperature in/out organs of a patient |
Scheduling access scheme | CSMA/CA, TDMA, FDMA, Aloha | CSMA/CA, TDMA, FDMA, Aloha |
Controls overhead | Low | Average |
Channel allocation mechanism to end-devices | Contention, polling and alert based | Contention and post-allocation |