Title :
Chi-squared distribution approximation for probabilistic energy equalizer implementation in impulse-radio UWB receiver
Author :
Mekki, Sami ; Danger, Jean-Luc ; Miscopein, Benoit ; Boutros, Joseph J.
Author_Institution :
Inst. Telecom, Telecom ParisTech, Paris, France
Abstract :
This paper addresses the hardware implementation feasibility assessment of a probabilistic energy equalizer for UWB impulse radio (IR) transmission. The receiver is based on energy detection and targets data rates greater than 100 Mbps. The aim of this study is to bypass certain complex mathematical functions like the chi-squared (¿2) distribution and approximate it by functions easier to implement. Fixed point data types simulations are achieved and compared to the results obtained from the reference floating point non-approximated function. Simulation results, under IEEE 802.15.3a channel models, confirm our choice which allows an easy hardware implementation for these complex functions.
Keywords :
approximation theory; equalisers; radio receivers; statistical distributions; ultra wideband communication; wireless channels; IEEE 802.15.3a channel models; approximation theory; chi-squared distribution approximation; data rate targets; hardware implementation; impulse-radio UWB receiver; probabilistic energy equalizer implementation; Detectors; Equalizers; Hardware; Interference; Iterative decoding; Pulse modulation; RAKE receivers; Radio transmitters; Research and development; Telecommunications;
Conference_Titel :
Communication Systems, 2008. ICCS 2008. 11th IEEE Singapore International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-2423-8
Electronic_ISBN :
978-1-4244-2424-5
DOI :
10.1109/ICCS.2008.4737441