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Bridging the Gap between Physical Layer Emulation and Network Simulation

Papanastasiou, Stylianos; Mittag, Jens; Ström, Erik G.; Hartenstein, Hannes

Many of the simulations reported in wireless networking literature contain several abstractions at the physical layer and the corresponding channel models. In particular, the basic simulation unit assumed in such simulations is the frame (or packet), which omits considerations of the signal processing details at the physical layer, such as frame construction and reception. Due to this abstraction, available channel models for network simulators are applied to frames as a whole and cannot reflect properly the effects of fast fading or frequency-selective channels. Moreover, it is not possible to study the mechanisms of the physical layer and their impact on higher layers such as the MAC. Therefore, we propose to address the lack of accurate physical layer representation in modern network simulators by incorporating a physical layer emulator for OFDM-based IEEE 802.11 communications into the popular NS-3 simulator. In this paper, we outline the architecture of the physical layer emulator and present initial results which highlight the promise of the new architecture in providing more detailed simulations to the networking community. The additional memory and computational requirements of the new model are also discussed.

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DOI: 10.1109/WCNC.2010.5506341
Zitationen: 29
Zitationen: 22
Zugehörige Institution(en) am KIT Institut für Telematik (TM)
Steinbuch Centre for Computing (SCC)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2010
Sprache Englisch
Identifikator ISBN: 978-142446398-5
ISSN: 1525-3511
KITopen-ID: 1000018134
Erschienen in Proceedings of the IEEE Wireless Communications and Networking Conference 2010, WCNC 2010; Sydney, NSW; Australia; 18 April 2010 through 21 April 2010
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Seiten Art. Nr.: 5506341
Serie IEEE Wireless Communications and Networking Conference, WCNC
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