A Comparison of the HIPERLAN/2 and IEEE 802.11a Wireless LAN Standards
نویسندگان
چکیده
At present, WLANs supporting broadband multimedia communication are being developed and standardized around the world. Standards include HIPERLAN/2, defined by ETSI BRAN, 802.11a, defined by the IEEE, and HiSWANa defined by MMAC. These systems provide channel adaptive data rates up to 54 Mb/s (in a 20 MHz channel spacing) in the 5 GHz radio band. In this article an overview of the HIPERLAN/2 and 802.11a standards is presented together with software simulated physical layer performance results for each of the defined transmission modes. Furthermore, the differences between these two standards are highlighted (packet size, upper protocol layers etc.), and the effects of these differences on throughput are analyzed and discussed.
منابع مشابه
Co-existence and Interworking of IEEE 802.11a and ETSI BRAN HiperLAN/2 in MultiHop Scenarios
IEEE 802.11a and ETSI BRAN HiperLAN/2 are evolving standards for Wireless Local Area Networks (WLANs). Radio systems of these types will operate at the unlicensed 5GHz bands. When these radio systems operate at the same radio channel in the neighborhood, they will mutually interfere with each other. Data throughput, quality of service levels, and availability will be degraded and unpredictable ...
متن کاملHiperlan/2 and Ieee 802.11a for the Wireless Local Loop
S.A. Charles, J.K. Pollard and T.H. Whittaker 1. Telecommunications Research Group, EE Dept, UCL, Torrington Place, London WC1E 7JE 2. Cambridge Consultants Ltd, Milton Road, Cambridge CB4 0DW [email protected] ABSTRACT This paper investigates the application of the ETSI HIPERLAN/2 and IEEE 802.11a physical layer standards to the wireless local loop. Simulation results are presented. A sim...
متن کاملEE 228 a - Lecture 4 - Spring 2006 WiFi Operations
This lecture covers the fundamentals of IEEE standards for wireless LAN, with emphasis on the physical layer and MAC. I. References References for this lecture include the following. • 802.11 Wireless Networks: The Definitive Guide, M. Gast, O’Reilly 2002. Many drawings used in this lecture are from here. • IEEE Std 802.11, 1999 Edition • IEEE Std 802.11b-1999 • IEEE Std 802.11a-1999 • IEEE 802...
متن کاملA Study of the Performance of HIPERLAN/2 and IEEE 802.11a Physical Layers
HIPERLAN/2 and IEEE 8 0 2 . 1 1 ~ are two Wireless LAN (WLAN) stundurds which operate in the 5GHz bund. In order to support broadband multimediu conznzunicutions, they cun provide dutu rates up to 54 Mbps. I n this puper an overview of the two stundurds is presented together with software simulated physical layer perfosnzance results. Furthermore, the differences between the two stundurds (PDU ...
متن کاملWireless Networks Performance, Quality of Service and Interoperability
The popularity of Wireless Local Area Networks has increased strongly during past few years. During the increased interest also requirements of WLANs have grown, especially towards performance and quality of service they can provide. This is the main reason why newer and faster WLANs are developed with enhanced QoS features. One point of interest has been the interoperability level which differ...
متن کامل