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

Mumbai University > Computer Engineering > Sem6 > Mobile Communication and Computing

Marks: 10M

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 Interface ATM networks -
Medium Access methods Active contention resolution AP centralized CSMA/CA
Connectivity Connection oriented 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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