Title :
Non-coherent fractionally spaced Rake reception in DS-UWB wireless communication systems
Author :
Kawashima, Yasutomo ; Sasaki, Shigenobu ; Kikuchi, Hisakazu
Author_Institution :
Dept. of Electr. & Electron. Eng., Niigata Univ., Niigata
Abstract :
Fractionally spaced Rake (FSRake) reception is proposed for non-coherent direct sequence ultra wideband (DS-UWB) wireless communication systems. In the FSRake reception, output signal of the pulse matched filter is sampled with a faster sampling rate than the chip rate of DS-UWB signal. Computer simulation is conducted to evaluate the performance of FSRake receiver in DS-UWB wireless system with M-ary code shift keying (MCSK-UWB) over IEEE802.15.3a multipath channel. Simulation results show that the non-coherent FSRake reception provides more than 4 dB SNR gain at the 10-5 bit error rate in comparison with the conventional non-coherent Rake reception, when the number of combining paths is six in 4-ary code shift keying UWB system over IEEE 802.15.3a CM1.
Keywords :
matched filters; multipath channels; personal area networks; radio receivers; signal sampling; ultra wideband communication; wireless channels; DS-UWB wireless communication system; IEEE 802.15.3a multipath channel; M-ary code shift keying; direct sequence ultra wideband; noncoherent fractionally spaced rake reception; pulse matched filter; Bit error rate; Computational modeling; Computer simulation; Gain; Matched filters; Multipath channels; RAKE receivers; Sampling methods; Ultra wideband technology; Wireless communication;
Conference_Titel :
Intelligent Signal Processing and Communications Systems, 2008. ISPACS 2008. International Symposium on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-2564-8
Electronic_ISBN :
978-1-4244-2565-5
DOI :
10.1109/ISPACS.2009.4806712
