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10 March 2010
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RF Special Section: Trends
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The many keys to wireless
The many keys to wireless access Now
that desktop computing has so deeply penetrated the home market, technology savvy consumers are looking at
the next wave in the home
technology revolution. Consumers are now looking to take home the same kind of
wireless mobility that they are beginning to see and to use daily at work.
This table briefly outlines LAN and personal area network (PAN) technologies that will make this type of wireless
technology feasible for the average consumer.
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| IEEE 802.11b high rate
| HomeRF
| Bluetooth
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| Market
| Home, school, and enterprise WLAN
| Home WLAN
| Wireless cable
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| Technology
| 2.4 GHz, ISM, DSSS
| 2.4 GHz ISM, 2.4 GHz ISM, FHSS, 50 hops/sec
| FHSS, 1,000 hops/sec
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| Data rate
| 11 Mbps
| 1 Mbps
| 1 Mbyte
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| Power
| 20 dBm
| 20 dBm
| 0 dBm, 20 dBm
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Range
| 50 m
| 50 m
| 1 to 10 m, 50 m
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| Topology
| 128 devices, CSMA/CA
| 128 devices, CSMA/CA
| 8 devices, Piconet
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| Security
| Optional WEP*
| Optional
| Encryption, authentication
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Separate voice channel
| Optional
| Optional
| Yes
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*Wire-equivalent encryption Source: Lucent Technologies Microelectronics Group Emerging Bluetooth
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RF Special Section
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