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

written 10.1 years ago by teamques10 ★ 70k

•   modified 10.1 years ago

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

Marks: 10 M

Year: May 2015

mobile communication

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written 10.1 years ago by teamques10 ★ 70k

modified 4.1 years ago by pk2373215 • 20

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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