Title

Simulation And Performance Of Full-Response Offset Quadrature Modulation Systems With Cosine Series Symbol Shaping

Abstract

Cosine series symbol shaping has been investigated as a means of achieving spectral efficiency in offset quadrature binary modulation (QBM) systems. However, only a limited set of cosine series shaping functions for full-response signaling has been reported. This paper will present a synthesis technique for generating a set, for given constraints, of cosine series shaping functions for QBM systems. The criteria for the synthesis technique will be discussed, and a table summarizing the synthesis of the set of cosine series will be generated. This paper will also present the performance of the offset QBM system employing cosine series symbol shaping, and having an optimum coherent receiver. The receiver structure, which is based on the cosine series pulse shaping matched filter implementation, will be discussed in detail. Furthermore, the QBM transceiver performance will be investigated in a nonlinear channel environment. The effects of soft channel compression on spectral efficiency, envelope uniformity, and probability of error will be presented. A hyperbolic tangent function, characteristic of bipolar transistor amplifier behavior, will be used as the model for the nonlinear channel. Theoretical and simulated results of the system probability of error will be presented.

Publication Date

12-1-1993

Publication Title

Proceedings - IEEE Military Communications Conference

Volume

3

Number of Pages

958-962

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

Socpus ID

0027810726 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0027810726

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