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HIPERLAN/1 vs HIPERLAN/2: Key Differences Explained

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This article compares HIPERLAN/1 and HIPERLAN/2, highlighting the key differences between them. HIPERLAN, short for High Performance Radio LAN, is a European counterpart to the IEEE 802.11 standards, developed by ETSI BRAN.

HIPERLAN/1 Features

Here’s a rundown of what HIPERLAN/1 offers:

  • Frequency: Operates in the 5 GHz band.
  • Data Rate: Supports data rates up to 19 Mbps.
  • Modulation: Employs Single Carrier (SC) modulation, such as GMSK.
  • Equalization: Uses a complex equalizer to manage delay spread.

HIPERLAN/2 Features

Let’s explore the features of HIPERLAN/2:

  • Frequency: Operates at 5 GHz with a 455 MHz bandwidth.
  • Data Rate: Supports data rates from 6 Mbps to 54 Mbps, similar to 802.11a.
  • Modulation: Uses multi-carrier modulation (OFDM), akin to 802.11a.
  • Power: Utilizes two bands: one for indoor use (200 milliWatt power) and another for outdoor use (1 Watt power).

HIPERLAN/1 vs HIPERLAN/2: Key Differences

The following table summarizes the main differences between HIPERLAN/1 and HIPERLAN/2:

SpecificationsHIPERLAN/1HIPERLAN/2
Access TechniqueTDMA, EY NPMATDMA, TDD
Modulation TechniqueGMSK, FSKBPSK-OFDM, QPSK-OFDM, 16QAM-OFDM, 64QAM-OFDM
Data Rate (Mbps)23 (HBR), 1.4 (LBR)From 6, 9, 12, 18, 27, 36, 48, 54
Frequency of Operation5.1 GHz to 5.3 GHz5.1 GHz to 5.3 GHz
Data Rate23.2 MbpsGreater than 20 Mbps
ApplicationWLANWireless ATM, Indoor Access
TopologyInfrastructure, De-centralised Ad-Hoccellular, centralized
Antenna TypeOmni-directionalOmni-directional
Coverage Range50 meters50 to 100 meters
InterfaceLANATM networks
Mobilityless than 10 m/sless than 10 m/s

HIPERLAN Type-3 (HIPERACCESS) Features

  • Frequency: 5.1 GHz to 5.3 GHz
  • Topology: Uni-directional or point to multi-point
  • Antenna type: directional
  • Range: 5000 meters
  • Data rate: >20 Mbps
  • Mobility: stationary
  • Frequency: 17.1 to 17.3 GHz
  • Topology: Directional
  • Antenna type: directional
  • Range: 150 meters
  • Data rate: 155 Mbps
  • Mobility: stationary