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Increasing Throughput and QoS in a HIPERLAN/2 System with Co-channel Interference

Published: 01 March 2002 Publication History

Abstract

There is a growing demand for bandwidth as well as mobility. Within ETSI BRAN a wireless LAN called HIPERLAN/2 has been standardized. While data rates can be as high as 54 Mbit/s for a high carrier to interferer ratio (C/I), more robust combinations of modulation and code-rate have to be used and also retransmissions do occur when interference is present. This leads to much smaller effective data rates. Interference and link adaptation are therefore important topics. In order to have a realistic co-channel interference, two radio cells are implemented which interact with each other. In both radio cells detailed implementations of the protocols are used. Data transmission between the terminals is carried out via TCP/IP, respectively UDP. In this paper it is shown how throughput as well as delay can be improved in all load conditions by reducing co-channel interference and reducing the variations in the interference situation which significantly increases the effectiveness of link adaptation.

References

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ETSI BRAN, HIPERLAN type 2 technical specification TS 101 475 V1.1.1, Physical (PHY) layer (April 2000).
[3]
ETSI BRAN, HIPERLAN type 2 technical specification TS 101 761-1 V1.1.1, Data Link Control (DLC) layer, Part 1 - Basic data transport function (April 2000).
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M. Fiacco, S. Stavrou and S.R. Saunders, Measurement and modelling of shadowing cross-correlation at 2 Ghz and 5 Ghz in indoor environments, in: Antennas and Propagation 2000, Davos, Switzerland, 9-14 April 2000.
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J. Khun-Jush, P. Schramm, U. Wachsmann and F. Wenger, Structure and performance of the HIPERLAN/ 2 physical layer, in: Proc. of IEEE VTC'99, Amsterdam, 1999.
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J. Rapp, HIPERLAN/2 system throughput and QOS with interference improving strategies, in: Proc. of IEEE VTC'01, Spring, RI, 2001.
  1. Increasing Throughput and QoS in a HIPERLAN/2 System with Co-channel Interference

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    Information & Contributors

    Information

    Published In

    cover image Telecommunications Systems
    Telecommunications Systems  Volume 19, Issue 3-4
    March 2002
    278 pages

    Publisher

    Kluwer Academic Publishers

    United States

    Publication History

    Published: 01 March 2002

    Author Tags

    1. HIPERLAN/2
    2. TCP/IP
    3. UDP
    4. co-channel interference
    5. link adaptation

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