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Compare HIPERLAN-1, HIPERLAN-2 and 802.11 WLAN.

This question appears in Mumbai University > Mobile Communication and Computing subject

Marks: 10 M

Year: May 2015

1 Answer
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Parameters HIPERLAN-1 HIPERLAN-2 802.11 WLAN
Application Wireless LAN Access to ATM fixed network Wireless networks
Frequency,Band 5 GHz 5 GHz 2.4 GHZ
Maximum Data rate 23.5 Mbps 54 Mbps 2 Mbps
Topology Decentralized adhoc/infrastructure Cellular, centralized Can be adhoc or infra-based
Antenna Omni-diectional
Range 50m 50-100m 100 m
Interface Conventional LAN ATM networks
Medium Access methods Active contention resolution AP centralized CSMA/CA
Connectivity Connectionless Connection oriented Connectionless
QoS (Quality of Service) Statistical ATM /802.1p/RSVP PCF (optional)
Frequency Selection Single carrier dynamic frequency selection (DSS) Frequency hopping or DSSS
Typical Outdoor Range 100 metres
Encryption DES, 3DES DES, 3DES 40 bit RC4
Authentication No X.509 No
Error control ARQ ARQ,FEC,(at physical layer) ARQ
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