Bounds on and Constructions of Unit Time-Phase Signal Sets

Details Bounds on and Constructions of Unit Time-Phase Signal Sets Bounds on and Constructions of Unit Time-Phase Signal Sets

2011-12-02

arxiv.org/abs/1112.0383v1

Computer Science

Information Theory

Scientific paper

Digital signals are complex-valued functions on $\Z_n$. Signal sets with certain properties are required in various communication systems. Traditional signal sets consider only the time distortion during transmission. Recently, signal sets against both the time and phase distortion have been studied, and are called {\em time-phase} signal sets. Several constructions of time-phase signal sets are available in the literature. There are a number of bounds on time signal sets (also called codebooks). They are automatically bounds on time-phase signal sets, but are bad bounds. The first objective of this paper is to develop better bounds on time-phase signal sets from known bounds on time signal sets. The second objective of this paper is to construct two series of time-phase signal sets, one of which is optimal.

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