Open AccessA Novel M‐ary Code‐Selected Direct Sequence BPAM UWB Communication System
Author(s) -
Bai Zhiquan,
Kwak Kyungsup
Publication year - 2006
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.06.0205.0054
Subject(s) - electronic engineering , additive white gaussian noise , ultra wideband , computer science , code (set theory) , modulation (music) , pulse amplitude modulation , algorithm , sequence (biology) , bandwidth (computing) , communications system , channel (broadcasting) , telecommunications , set (abstract data type) , engineering , pulse (music) , physics , acoustics , biology , genetics , programming language , detector
In this letter, a novel M‐ary code‐selected direct sequence (DS) ultra‐wideband (UWB) communication system is presented. Our purpose is to achieve a high data rate by an M‐ary code‐selected direct sequence bipolar pulse amplitude modulation (MCSDS‐BPAM) scheme. In this system, a particular DS code sequence is selected by the log 2 M/2 bits from the DS gold code set. This scheme can accomplish both a high data rate without increasing the system bandwidth or changing the pulse shape and improve the BER with an increase of modulation level M even at a lower signal‐to‐noise ratio (SNR). The receiver signal processing algorithm is given for an MCSDS‐BPAM UWB system over an ideal AWGN channel and correlation receivers.