and 4 others joined a min ago.
0
2.6kviews
Compare IEEE 802.15.1, IEEE 802.15.3a and IEEE 802.15.4 Technologies.
1 Answer
0
83views
written 5.1 years ago by
teamques10
★ 64k
|
• modified 4.8 years ago |
| Parameter | IEEE 802.15.1 | IEEE802.15.3a | IEEE802.15.4 |
|---|---|---|---|
| Name | Bluetooth | UWB | Zigbee |
| Frequency band | 2.4GHz | 3.1-10.6 GHz | 868/915 MHz; 2.4 GHz |
| Max signal rate | 1 Mb/s | 110Mb/s | 250kb/s |
| Nominal range | 10 m | 10 m | 10-100 m |
| Nominal TX power | 0 - 10 dBm | -41.3 dBm/MHz | (-25) - 0 dBm |
| Number of RF channels | 79 | (1-15) | 1/10;16 |
| Channel bandwidth | 1MHZ | 500MHz7.5GHz | 0.3/0.6 MHz; 2 MHz |
| Modulation type | GFSK | BPSK, QPSK | BPSK (+ ASK), O-QPSK |
| Spreading | FHSS | DS-UWB, MB-OFDM | DSSS |
| Coexistence mechanism | Adaptive freq. hopping | Adaptive freq. hopping | Dynamic freq. selection |
| Basic cell | Piconet | Piconet | Star |
| Topologies | Cluster, Multihop | Peer-peer | Star cluster,mesh |
| Media Acess | TDD, Frequency hop | CSMA/CA, OFDM | CSMA/CA |
| Max number of cell nodes | 8 | 8 | $>$65000 |
| Data protection | 16-bit CRC | 32-bit CRC | 16-bit CRC |
| Security | SAFER | AES-128 | AES-128 |
ADD COMMENT
EDIT
Please log in to add an answer.