Performance of Adaptive Modulation in HIPERLAN/2 for Frequency-Selective and Time Variant Channels Assessing Combined Physical Layer and Signaling Aspects
Authors: Bolinth, E. and Siebert, Matthias and Stauffer, O. and Kern, R. and Grünheid, R.
Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University
Contact: publications@comnets.rwth-aachen.de
In 7th International OFDM-Workshop, p.p. 173-177, Hamburg, Germany, 2002.
Publication Date: Sep, 2002
On page(s):173-177
ISBN:
Abstract
In this paper, a joint PHYsical-layer and Protocol- level simulation analysis of Adaptive Modulation (AdMod) including the specific signaling is carried out. AdMod is a well-known technique which can be applied to an Orthogonal Frequency Division Multiplexing (OFDM) system, which variably adapts the modulation scheme to the Signal-to-Noise-Ratio (SNR) on a per sub-carrier basis. To decide if AdMod is capable of introducing an overall system enhancement, its performance will be determined for a HIPERLAN/2 system in the presence of a frequencyselective and time-varying radio channel. Furthermore, real system effects like performance degradations due to preamble-based channel estimation, zero-forcing equalization and the impact of non-perfect bit-loading are considered.
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@INPROCEEDINGS{Mst_OFDMWorkshop02,
AUTHOR = {Bolinth, E. and Siebert, M. and Stauffer, O. and Kern, R. and Grünheid,
R.},
TITLE = {Performance of Adaptive Modulation in HIPERLAN/2 for Frequency-Selective
and Time Variant Channels Assessing Combined Physical Layer and
Signaling Aspects },
JOURNAL = {7th International OFDM-Workshop},
YEAR = {2002},
MONTH = {Sep},
VOLUME = {0},
PAGES = {173-177},
ADDRESS = {Hamburg, Germany},
AFFILIATION = {Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
ANNOTE = {Modulation, HIPERLAN/2, Higher Velocities, Link Level-/ Protocol Level
Investigatio},
URL = {https://www.comnets.rwth-aachen.de}
}