Title :
Post detection integration for ultra-wideband systems with binary orthogonal signaling
Author_Institution :
Commun. Technol. Lab., Swiss Fed. Inst. of Technol., Zurich, Switzerland
Abstract :
In this paper, an iterative non-coherent post detection integration (PDI) scheme is analyzed for binary orthogonal signaling which is a suitable approach for simple detection in ultra-wideband systems with slowly fading channel characteristics. Unlike in the coherent case relying on first-order channel characteristics, the PDI operation depends exclusively on second-order moments such as the power-delay profile and the thermal noise power spectral density. We derive analytic and numeric expressions for the uncoded bit-error rate in Gaussian delay-dispersive fading channels and discuss the performance for different values of system parameters. It turns out that in a typical indoor environment, the PDI exhibits a 6 dB loss in signal-to-noise ratio as compared to the optimum coherent detection with perfect channel knowledge.
Keywords :
Gaussian channels; error statistics; fading channels; iterative methods; telecommunication signalling; thermal noise; ultra wideband communication; BER; Gaussian delay-dispersive fading channels; binary orthogonal signaling; bit-error rate; iterative noncoherent post detection integration scheme; post detection integration; power spectral density; power-delay profile; thermal noise; ultrawideband systems; Bit error rate; Delay; Fading; Indoor environments; Iterative methods; Performance analysis; Signal analysis; Signal to noise ratio; Ultra wideband technology; Working environment noise;
Conference_Titel :
Ultra-Wideband, 2005. ICU 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-9397-X
DOI :
10.1109/ICU.2005.1569972
