Abstract

Summary form only given. Low correlation zone (LCZ) sequences were introduced to address a specific requirement of a generalized quasi-synchronous code-division multiple access (QS-CDMA) communication system. In this talk I will introduce the problem of low correlation zone sequence design and present basic schemes using interleaving techniques. The low correlation zone requirement presents new challenges in the area of bounds involving family size and low correlation parameters. I will talk about some of the results on limitations arises from the bounds. There have been several papers dealing with the construction methods involving finite fields, finite rings and several combinatorial objects such as Hadamard matrices. The talk will include key constructions and a brief survey some recent results in the area.

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