Donnerstag, 8. Januar 2009The Influence of Subchannel Diversity on the Performance of OFDMA Systems based on IEEE 802.16
Authors
Einhaus, Michael and Wolz, Benedikt and Walke, Bernhard
Chair of Communication Networks (ComNets), Faculty 6, RWTH Aachen University Kontakt: Benedikt Wolz
In Proceedings of IEEE ICCSC Shanghai 2008, p. 5, Lehrstuhl für Kommunikationsnetze, RWTH Aachen, 2008.
Publication Date: May, 2008
On page(s):5
ISBN: 978-1-4244-1707-0
The performance of a mobile radio system based on OFDMA is determined by the type of mapping of logical subchannels, which are allocated for data transmissions, onto the frequency channel. The mapping scheme affects the diversity both within and between the OFDMA subchannels. This paper provides a performance comparison of different subchannel mappings from MAC point of view by means of stochastic eventdriven simulations. The tradeoff between the effects of mapping subchannels onto distributed and adjacent subcarrier sets are investigated in detail. The effects are robust SNR estimation and possible throughput gains due to frequency adaptive scheduling, respectively.
OFDMA, IEEE 802.16, diversity
230 KB or here @CONFERENCE{Einhaus_200805,
AUTHOR = {Einhaus, M. and Wolz, B. and Walke, B.},
TITLE = {The Influence of Subchannel Diversity on the Performance of OFDMA
Systems based on IEEE 802.16},
YEAR = {2008},
MONTH = {May},
PAGES = {5},
ADDRESS = {Lehrstuhl für Kommunikationsnetze, RWTH Aachen},
BOOKTITLE = {Proceedings of IEEE ICCSC Shanghai 2008},
EDITOR = {Michael Einhaus, Benedikt Wolz and Bernhard Walke},
AFFILIATION = {Chair of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
ISBN = {978-1-4244-1707-0 },
KEYWORDS = {OFDMA, IEEE 802.16, diversity},
LOCATION = {Shanghai IEEE ICCSC },
URL = {http://www.comnets.rwth-aachen.de}
}
Signature in CN-Library = {Qi 036}