Asynchronous CDMA systems with random spreadingpart II: Design criteria

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autor(en): Cottatellucci L, Müller R, Debbah M
Zeitschrift: IEEE Transactions on Information Theory
Verlag: Institute of Electrical and Electronics Engineers (IEEE)
Jahr der Veröffentlichung: 2010
Band: 56
Heftnummer: 4
Seitenbereich: 1498-1520
ISSN: 0018-9448


Totally asynchronous code-division multiple-access (CDMA) systems are addressed. In Part I, the fundamental limits of asynchronous CDMA systems are analyzed in terms of spectral efficiency and SINR at the output of the optimum linear detector. The focus of Part II is the design of low-complexity implementations of linear multiuser detectors in systems with many users that admit a multistage representation, e.g., reduced rank multistage Wiener filters, polynomial expansion detectors, weighted linear parallel interference cancellers. The effects of excess bandwidth, chip-pulse shaping, and time delay distribution on CDMA with suboptimum linear receiver structures are investigated. Recursive expressions for universal weight design are given. The performance in terms of SINR is derived in the large-system limit and the performance improvement over synchronous systems is quantified. The considerations distinguish between two ways of forming discrete-time statistics: chip-matched filtering and oversampling. © 2006 IEEE.

FAU-Autoren / FAU-Herausgeber

Müller, Ralf Prof. Dr.-Ing.
Professur für Informationsübertragung


Cottatellucci, L., Müller, R., & Debbah, M. (2010). Asynchronous CDMA systems with random spreadingpart II: Design criteria. IEEE Transactions on Information Theory, 56(4), 1498-1520.

Cottatellucci, Laura, Ralf Müller, and Merouane Debbah. "Asynchronous CDMA systems with random spreadingpart II: Design criteria." IEEE Transactions on Information Theory 56.4 (2010): 1498-1520.


Zuletzt aktualisiert 2018-19-04 um 03:18