Title :
Interference cancelation for non-CP DS-UWB system with MRC frequency domain equalization
Author :
Xiaoya Zuo ; Ding Wang
Author_Institution :
Northwestern Polytech. Univ., Xi´an, China
Abstract :
Proposed is a low complexity inter-block interference (IBI) and inter-chip interference (ICI) cancelation method for direct-sequence ultra-wideband (DS-UWB) system without cyclic prefix (CP). Based on DS-UWB scheme considered by IEEE 802.15.3a standard, the group of chips formed by spreading each modulated symbol are regarded as individual frequency domain equalization (FDE) blocks. Simply by using the previous detected symbol, jointly IBI and ICI can be totally eliminated from the current block detection procedure. Compared with CP reconstruction and overlap-FDE methods, this proposed scheme has lower complexity and better approaching matched filter bound (MFB) performance.
Keywords :
code division multiple access; frequency-domain analysis; interference suppression; intersymbol interference; matched filters; personal area networks; signal detection; spread spectrum communication; ultra wideband communication; FDE block detection; IEEE 802.15.3a standard; MFB performance; MRC frequency domain equalization; cyclic prefix; direct sequence code division multiple access; direct sequence ultra wideband system; frequency domain equalization block; high-rate wireless personal area network; interblock interference cancelation method; interchip interference cancelation method; low complexity IBI; low complexity ICI; matched filter bound; nonCP DS-UWB system; symbol detection; Complexity theory; Frequency-domain analysis; IEEE 802.15 Standards; Interference; Personal area networks; Receivers; Direct-sequence ultra-wideband (DS-UWB); cyclic prefix; frequency domain equalization (FDE); inter-chip interference; interblock interference;
Conference_Titel :
Computer, Communication, Control and Information Technology (C3IT), 2015 Third International Conference on
Conference_Location :
Hooghly
Print_ISBN :
978-1-4799-4446-0
DOI :
10.1109/C3IT.2015.7060134
