Performance evaluation of memory-less and Kalman-based channel estimation for OFDMA
2009 (English)In: IEEE Vehicular Technology Conference, Barcelona, Spanien, April 26-29, 2009, 2009, 2314-2318 p.Conference paper (Refereed)
The next generation wireless systems based on Orthogonal Frequency Division Multiple Access (OFDMA) need to operate in widely different deployment and usage scenarios. Thus, support for flexible resource allocation is important. In this paper we investigate the performance or different memory-less and memory-based channel estimators for different OFDMA subcarrier allocation schemes and different pilot patterns. We evaluate the performance in various fading environments and for different user terminal velocities. The results show that channel estimation can perform well enough for time-frequency localized resources as small as 22 channel symbols with two pilots in many important scenarios. The results provided can be used to identify appropriate subcarrier allocations for the next generation OFDMA based wireless systems.
Place, publisher, year, edition, pages
2009. 2314-2318 p.
, IEEE Vehicular Technology Conference, ISSN 1550-2252
Research subject Electrical Engineering with specialization in Signal Processing
IdentifiersURN: urn:nbn:se:uu:diva-111856ISI: 000273169201079ISBN: 978-1-4244-2516-7OAI: oai:DiVA.org:uu-111856DiVA: diva2:283468
69th IEEE Vehicular Technology Conference, Barcelona, SPAIN, APR 26-29, 2009