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Article
UWB-FSK: performance tradeoffs for high and low complexity receivers
IEEE Transactions on Consumer Electronics
  • F. Ramirez-Mireles
  • Todor Cooklev, Indiana University - Purdue University Fort Wayne
  • G. A. Paredes-Orozco
Document Type
Article
Publication Date
11-1-2010
Inclusive pages
2123-2131
DOI
http://dx.doi.org/10.1109/TCE.2010.5681081
Publisher
Institute of Electrical and Electronics Engineers
Place of Publication
United States
ISBN/ISSN
0098-3063
Peer Reviewed
Yes
Abstract

In this work we explore flexible modulations to allow demodulation using receivers with different complexity and cost. More specifically, we study pulse-based ultra wideband (UWB) communications over channels with dense multipath effects using frequency shift keying (FSK) data modulation. Our aim is to explore the performance tradeoffs between high and low complexity receivers. For this purpose we determine the performance of coherent, non-coherent and mismatched (e.g., non-coherent detection using templates consisting of a single path) demodulators. We take into account the influence of the frequency response of the antenna system and the effects of the frequency selectivity of the multipath channel. Given a specific channel condition, we derive expressions for the bit error rate for coherent, noncoherent and mismatched reception of correlated FSK signals with unequal energies, and calculate the signal-to-noise ratio (SNR) degradation for different receiver's complexities with a given FSK frequency deviation We show that UWB-FSK has a SNR degradation similar to other low-complexity receivers studied in the literature.

Disciplines
Citation Information
F. Ramirez-Mireles, Todor Cooklev and G. A. Paredes-Orozco. "UWB-FSK: performance tradeoffs for high and low complexity receivers" IEEE Transactions on Consumer Electronics Vol. 56 Iss. 4 (2010)
Available at: http://works.bepress.com/todor_cooklev/5/