HiperLAN vs Other LAN Technologies

HiperLAN emerged as a strong competitor to other LAN technologies in the late 1990s. It offered faster speeds, up to 54 Mbps, compared to Ethernet's 10 Mbps at the time.

Ethernet was the dominant LAN technology, but HiperLAN's higher speeds made it more appealing for applications that required more bandwidth.

HiperLAN's MAC layer was designed to be more efficient, with a focus on reducing latency and increasing throughput.

HiperLAN/2 was accomplished in February 2000, with a focus on providing a fast wireless connection for various networks, including UMTS back bone network, ATM and IP networks.

The physical layer of HiperLAN/2 is similar to IEEE 802.11a wireless local area networks.

HiperLAN/2 operates at 5 GHz with a 455 MHz bandwidth, similar to what's mentioned in HIPERLAN/2 Features.

The standard covers Physical, Data Link Control and Convergence layers.

HiperLAN/2 uses Dynamic TDMA for media access control, in contrast to CSMA/CA used in 802.11a/n.

Here are some key features of HiperLAN/2:

HiperLAN/1 was first planned in 1992, with the goal of achieving a higher data rate than 802.11. It was approved in 1997.

The standard covers the physical layer and media access control part of the data link layer, like 802.11. It has a new sublayer called Channel Access and Control sublayer (CAC).

CAC layer provides hierarchical independence with Elimination-Yield Non-Preemptive Multiple Access mechanism (EY-NPMA). EY-NPMA enables the network to function with few collisions even though there would be a large number of users.

HiperLAN/1 uses FSK and GMSK modulations on the physical layer. It has a range of 100 m and supports slow mobility of 1.4 m/s.

The standard supports both asynchronous and synchronous traffic. It has a bit rate of 23.59 Mbit/s and operates on the 5 GHz frequency range.

Here's a comparison of some key features of HiperLAN/1:

HiperLAN/1 also has a unique feature called p-savers, which can extend the communication on the MAC layer beyond the radio range by using relays.

HiperLAN/1 was the first version of the standard, approved in 1997, and it aimed for a high data rate, higher than 802.11.

The standard covers the physical layer and the media access control part of the data link layer, like 802.11, with a new sublayer called Channel Access and Control sublayer (CAC). This sublayer deals with the access requests to the channels.

HiperLAN/1 uses FSK and GMSK modulations on the physical layer, and it supports asynchronous and synchronous traffic, with a bit rate of 23.59 Mbit/s.

The range of HiperLAN/1 is 100 m, with slow mobility (1.4 m/s), and it operates in the 5 GHz frequency range.

Here are some key features of HiperLAN/1:

HiperLAN/2, on the other hand, was designed as a fast wireless connection for many kinds of networks, including UMTS backbone networks, ATM, and IP networks.

Additional reading: List of 5G NR Networks

HiperLAN/2 uses the 5 GHz band and offers data rates of up to 54 Mbit/s, making it suitable for multimedia applications.

The physical layer of HiperLAN/2 is similar to IEEE 802.11a wireless local area networks, but it uses Dynamic TDMA instead of CSMA/CA.

HiperLAN/2 operates at 5 GHz with a 455 MHz bandwidth, and it supports data rates from 6 Mbps to 54 Mbps.

Here are some key features of HiperLAN/2:

HiperLAN does not support handover, which means you'll need to manually switch networks if you move between coverage areas.

HiperLAN requires a gateway to a fixed (backbone) infrastructure to connect to the wider internet.

HiperLAN also supports peer-to-peer connections, eliminating the need for base stations in some cases.

The radio modem fits in a PCMCIA slot of a PC, making it easy to integrate with existing technology.

HiperLAN supports time-bounded services, which means it can prioritize certain tasks or services over others using a priority scheme.

Quality and performance are crucial factors when dealing with wireless LANs like HiperLAN. Performance is one of the most important factors when dealing with wireless LANs.

The physical environment plays a significant role in assessing the usefulness of using a wireless technology like HiperLAN. Many factors have to be taken into consideration, including the topography of the landscape, elevations that might cause shadows, and environments with many signal-reflection or absorbing surfaces.

Simulations show that the HiperLAN MAC can support a variety of applications, including ApplicationThroughputDelivery Time25 audio links at 32kbit/s32kbit/s10ms25 audio links at 16kbit/s16kbit/s20ms1 video link at 2Mbit/s2Mbit/s100msAsynch file transfer13.4Mbit/sN/A

If this caught your attention, see: Wireless Medical Telemetry Service

Quality of service is crucial when dealing with wireless LANs. Performance can be unpredictable due to the randomized bursty nature of data traffic.

The physical environment plays a significant role in assessing the usefulness of wireless technology. Factors such as topography, elevations, and signal-reflection surfaces can affect connectivity.

Simulations show that the HIPERLAN MAC can support multiple connections simultaneously. For example, it can handle 25 audio links at 32kbit/s with a 10ms delivery time.

Here's a summary of the supported connections:

The quality of the wireless equipment and its placement can also impact performance.

A high-performance LAN (Local Area Network) is crucial for any business or organization that relies heavily on data transfer and communication.

A well-designed LAN can significantly improve network speed and efficiency, allowing users to access and share resources quickly and easily.

For example, a network with a 1 GbE (gigabit Ethernet) connection can transfer data at speeds of up to 1,000 Mbps (megabits per second).

This is particularly important for applications that require high-bandwidth connections, such as video conferencing, online gaming, and large file transfers.

To achieve high-performance LAN, it's essential to use the right networking equipment, such as switches and routers, that can handle high-speed data transfer.

In fact, a study found that using a high-performance switch can improve network throughput by up to 30%.

By implementing a high-performance LAN, organizations can improve productivity, reduce downtime, and enhance overall network performance.

Take a look at this: Data Radio Channel

HIPERLAN has undergone significant development, with two main standards being HIPERLAN/1 and HIPERLAN/2.

HIPERLAN/2 is designed to be compatible with ATM, a major difference from HIPERLAN/1. This compatibility allows for seamless integration with existing ATM networks.

The WINForum for NII/SUPERNET in the US aims to support both HIPERLAN/1 and HIPERLAN/2, demonstrating the industry's recognition of the importance of these standards.

Here's a summary of the key differences between HIPERLAN/1 and HIPERLAN/2:

HIPERLAN2 is a new version of HIPERLAN that's designed to be compatible with ATM, making it a key player in the world of wireless communication standards.

The idea behind HIPERLAN2 is to allow for seamless integration with other networks, enabling faster data transfer and more efficient communication.

A second set of standards has been constructed for HIPERLAN2, showing that the technology is evolving and improving rapidly.

The WINForum for NII/SUPERNET in the US is working to support both HIPERLAN 1 and HIPERLAN 2, highlighting the importance of compatibility and interoperability.

This effort involves collaboration between multiple organizations, including ETSI RES10, WINForum, and ATM Forum, demonstrating the complexity and scope of standardization efforts.

HIPERLAN/1 and HIPERLAN/2 have distinct differences in their access techniques, modulation techniques, and data rates. HIPERLAN/1 uses TDMA, EY NPMA, and GMSK, FSK modulation, while HIPERLAN/2 employs TDMA, TDD, and a variety of modulation techniques including BPSK-OFDM, QPSK-OFDM, 16QAM-OFDM, and 64QAM-OFDM.

HIPERLAN/1 has a data rate of 23 Mbps in high bit rate (HBR) mode and 1.4 Mbps in low bit rate (LBR) mode, whereas HIPERLAN/2 offers a range of data rates from 6 to 54 Mbps.

HIPERLAN/2 supports wireless ATM and indoor access, whereas HIPERLAN/1 is primarily used for WLAN applications. HIPERLAN/2 also has a more centralized topology, whereas HIPERLAN/1 can operate in both infrastructure and decentralized ad-hoc topologies.

Here's a comparison of the two standards:

Benchmarking a HIPERLAN installation can be a daunting task, especially when you consider that it requires evaluating performance over a longer period of time.

The factors influencing performance are numerous and complex, making initial benchmarking based on perceived performance and registered performance over time a more reliable approach.

Trying to find the communication stream in the air, rather than on a physical cable, adds to the challenge of benchmarking HIPERLAN.

The testing equipment must be able to monitor several frequencies at once, which can be a significant obstacle.

The equipment itself can even interfere with the signals it intends to monitor, making the benchmarking process even more complicated.