Total weighted square correlation of multipath multibase synchronous DS-CDMA systems

Author

Cotae, Paul ; Pantic-Tanner, Zorica ; Aguirre, Matt

Author_Institution

Dept. of Electr. Eng., Texas Univ., San Antonio, TX, USA

Volume

1

fYear

2005

fDate

30 May-1 June 2005

Firstpage

424

Abstract

The matrix model and the total weighted square correlation (TWSC) measure for overloaded uplink multiple cell synchronous DS-CDMA systems in the presence of multipath are introduced. A composite Gram matrix approach is used in order to characterize the generalized WBE (Welch bound equality) sequences in extended multidimensional signal space. We have developed an algorithm that preserves the bandwidth of generalized WBE sequences from each cell in the multidimensional signal space associated with a multicellular system.

Keywords

cellular radio; code division multiple access; correlation methods; matrix algebra; multidimensional signal processing; multipath channels; sequences; spread spectrum communication; Gram matrix; Welch bound equality sequences; matrix model; multicellular system; multidimensional signal space; multipath multibase synchronous DS-CDMA systems; multiple cell DS-CDMA system; total weighted square correlation; Base stations; Correlation; Electric variables measurement; Gaussian noise; Interference constraints; Iterative algorithms; Multiaccess communication; Multidimensional systems; Multiple access interference; Transmitters; GWBE; Total weighted squared correlaion; Welch Bound Equality sequences (WBE); generalized WBE; multibase CDMA; multipath; spreading sequence design;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st

ISSN

1550-2252

Print_ISBN

0-7803-8887-9

Type

conf

DOI

10.1109/VETECS.2005.1543325

Filename

1543325