Title

Direct Sequence Spread Spectrum Simulation In A Cdma Environment With The Conventional Sliding Correlator

Abstract

A relatively new software package has emerged that facilitates the modeling of Direct Sequence Spread Spectrum (DSSS) systems. The Signal Processing Worksystem with Block Oriented Software Simulator (SPW/BOSS) by Comdisco [1] provides the flexibility of an open architecture and the strength of a vast component library. It was used extensively in this paper to generate models and simulate Code Division Multiple Access (CDMA) systems. The upcoming examples feature data sources and spreadingmechanisms designedwith individual Pseudo-Noise (PN) sequence generators with different polynomial orders, channels containing Additive White Gaussian Noise (AWGN), and receivers made up of Conventional Sliding Correlators (CSC) thatareusedas test beds to measure model integrity and performance trends. Contained within the CSC is a local PN generator with a sequence that matches the targeted transmitter, except for a possible phase shift Further complexity is added to the models by studying the "near-far" problem associated with CDMA systems. These effects are simulated in software by altering the amplitudes of the transmitted signals. Simulation results are compared to analytical predications.

Publication Date

1-1-1992

Publication Title

Proceedings - SSST/CSA 1992: 24th Southeastern Symposium on System Theory and 3rd Annual Symposium on Communications, Signal Processing Expert Systems, and ASIC VLSI Design

Number of Pages

533-537

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/SSST.1992.712355

Socpus ID

84889555220 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84889555220

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