Ieee 802.11: Standard Data Rate Modulation Scheme Security Pros/Cons & More Info
Ieee 802.11: Standard Data Rate Modulation Scheme Security Pros/Cons & More Info
Ieee 802.11: Standard Data Rate Modulation Scheme Security Pros/Cons & More Info
Security
Pros/Cons & More Info This specification has been extended into 802.11b. Products that adhere to this standard are considered "Wi-Fi Certified." Eight available channels. Less potential for RF interference than 802.11b and 802.11g. Better than 802.11b at supporting multimedia voice, video and large-image applications in densely populated user environments. Relatively shorter range than 802.11b. Not interoperable with 802.11b. Products that adhere to this standard are considered "Wi-Fi Certified." Not interoperable with 802.11a. Requires fewer access points than 802.11a for coverage of large areas. Offers highspeed access to data at up to 300 feet from base station. 14 channels available in the 2.4GHz band (only 11 of which can be used in the U.S. due to FCC regulations) with only three non-overlapping channels. Products that adhere to this standard are considered "Wi-Fi Certified." May replace 802.11b. Improved security enhancements over 802.11. Compatible with 802.11b. 14 channels available in the 2.4GHz band (only 11 of which can be used in the U.S. due to FCC regulations) with only three non-overlapping channels. Commonly referred to as WiMAX or less commonly as WirelessMAN or the Air Interface Standard, IEEE 802.16 is a specification for fixed broadband wireless metropolitan access networks (MANs) Commonly referred to as WiMAX or less commonly as WirelessMAN or the Air Interface Standard, IEEE 802.16 is a specification for fixed broadband wireless metropolitan access networks (MANs) No native support for IP, so it does not
IEEE 802.11
OFDM
OFDM
Bluetooth
Up to 2Mbps
FHSS
support TCP/IP and wireless LAN applications well. Not originally created to support wireless LANs. Best suited for connecting PDAs, cell phones and PCs in short intervals. Note: HomeRF is no longer being supported by any vendors or working groups. Intended for use in homes, not Independent network enterprises. Range is only 150 feet IP addresses for each from base station. Relatively network. Data is sent inexpensive to set up and maintain. with a 56-bit Voice quality is always good because encryption algorithm. it continuously reserves a chunk of bandwidth for voice services. Responds well to interference because of frequency-hopping modulation. Per-session encryption and individual authentication. Strong security features with support for individual authentication and per-session encryption keys. OpenAir doesn't implement any encryption at the MAC layer, but generates Network ID based on a password (Security ID) Only in Europe. HiperLAN is totally ad-hoc, requiring no configuration and no central controller. Doesn't provide real isochronous services. Relatively expensive to operate and maintain. No guarantee of bandwidth. Only in Europe. Designed to carry ATM cells, IP packets, Firewire packets (IEEE 1394) and digital voice (from cellular phones). Better quality of service than HiperLAN/1 and guarantees bandwidth.
HomeRF
FHSS
HiperLAN/1 (Europe)
CSMA/CA
HiperLAN/2 (Europe)
OFDM
OpenAir
Pre-802.11 protocol, using Frequency Hopping and 0.8 and 1.6 Mb/s bit rate
OpenAir is the proprietary protocol from Proxim. All OpenAir products are based