MAC Level Performance Comparison of Distributed and Adjacent OFDMA Subchannels in IEEE 802.16
Authors: Einhaus, Michael and Klein, Ole and Walke, Bernard and Halfmann, Rüdiger
Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University
: Michael Einhaus
In Proceedings of the European Wireless Conference 2007, p. 6, Paris, France, 2007.
Publication Date: Apr, 2007
On page(s):6
ISBN: 2-912328-41-1
Abstract This paper provides a comprehensive simulative performance evaluation of the OFDMA subchannel schemes which are used in the IEEE 802.16 standard. The subchannels are either distributed or adjacent in the frequency channel. The analysis is focused on the tradeoff between accuracy in the SINR estimation due to time-correlated fading processes and the exploitation of diversity. The adjacent subchannel scheme provides a high degree of diversity in the subchannel quality compared to the distributed approach. The reason for that is the averaging effect of the latter scheme. At the same time that effect is also responsible for the more accurate SINR estimation in the distributed subchannel scheme. The performance comparison is conducted for the downlink in a multi user reference scenario with mobility.
Author Keywords
OFDMA, IEEE 802.16, subchannel schemes, resource scheduling, medium access control, fading, SINR estimation
DownloadBibtex
@INPROCEEDINGS{EiKlWaHaEW07,
AUTHOR = {Einhaus, M. and Klein, O. and Walke, B. and Halfmann, R.},
TITLE = {MAC Level Performance Comparison of Distributed and Adjacent OFDMA
Subchannels in IEEE 802.16 },
YEAR = {2007},
MONTH = {Apr},
PAGES = {6},
ADDRESS = {Paris, France},
BOOKTITLE = {Proceedings of the European Wireless Conference 2007},
AFFILIATION = {Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
ISBN = {2-912328-41-1},
KEYWORDS = {OFDMA, IEEE 802.16, subchannel schemes, resource scheduling, medium
access control, fading, SINR estimation },
URL = {https://www.comnets.rwth-aachen.de}
}
Signature in CN-Library = {QK017 (2007)}