Paper Info
Title
Asynchronous Multi-Carrier Ds-Cdma With Ucht-Based Complex Spreading Sequences
Abstract
Quadriphase complex sequences based on unified complex Hadamard transform (UCHT) are orthogonal ann easy to generate [6]. There are sixty-four sets in UCHT-based sequences. Some sets of UCHT sequences provide better autocorrelation properties than orthogonal walsh-Hadamard (WH) sequences. In this paper, UCHT-based sequences are applied as spreading sequences in an asynchronous MC-DS-CDMA system. The bit-error rate (BER) performance of the underlying system with complex spreading sequences is investigated and simulation results show that the asynchronous MC-DS-CDMA system spread by UCHT sequences outperforms that spread by WH sequences in frequency, selective fading channel.
Year
DOI
Venue
2006
10.1109/VETECS.2006.1683054
2006 IEEE 63RD VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6
Keywords
Field
DocType
ofdm,mobile communication,code division multiple access,bit error rate,autocorrelation,fading,spread spectrum communication,ber,frequency division multiplexing,walsh functions
Asynchronous communication,Fading,Computer science,Electronic engineering,Complementary sequences,Code division multiple access,Walsh function,Hadamard transform,Bit error rate,Spread spectrum
Conference
ISSN
Citations 
PageRank 
1090-3038
0
0.34
References 
Authors
4
3
Name
Order
Citations
PageRank
Zhenghui Gu126227.18
Shoulie Xie217720.80
Susanto Rahardja3652102.05