Title :
Novel two dimensional complementary sequences in ultra wideband wireless communications
Author :
Zhang, Chao ; Lin, Xiaokang ; Hatori, Mitsutoshi
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
In ultra wide band (UWB) wireless communications, multicarrier CDMA has been considered as a combination of CDMA and OFDM. However, even until now, the efficient CDMA scheme suitable for OFDM signal composed of a set of orthogonal subcarriers is still under study and searching. In this paper, we present a novel "two dimensional complementary sequence" (TDC) and its application in MC-CDMA system. Meanwhile, an algorithm to construct this sequence has been built up. It has been proved that the new scheme can offer a low PAR value (within 3 dB) as well as high bandwidth efficiency and high transmission.
Keywords :
OFDM modulation; broadband networks; code division multiple access; matrix algebra; radio networks; sequences; OFDM; code division multiple access; multicarrier CDMA; orthogonal frequency division multiple access; orthogonal subcarriers; peak to average power ratio; two dimensional complementary sequence; ultra wide band (UWB) wireless communications; Bandwidth; Chaotic communication; Informatics; Multiaccess communication; Multicarrier code division multiple access; OFDM; Partial transmit sequences; Peak to average power ratio; Ultra wideband technology; Wireless communication;
Conference_Titel :
Ultra Wideband Systems and Technologies, 2003 IEEE Conference on
Print_ISBN :
0-7803-8187-4
DOI :
10.1109/UWBST.2003.1267872
