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Noncoherent Constant False-Alarm Rate Schemes With Receive Diversity for Code Acquisition Under Homogeneous and Nonhomogeneous Fading Circumstances

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4 Author(s)
Hyoungmoon Kwon ; Korea Adv. Inst. of Sci. & Technol., Taejeon ; Iickho Song ; Sun Yong Kim ; Seokho Yoon

In this paper, we address the cell averaging (CA), greatest of (GO), and smallest of (SO) constant false-alarm rate (CFAR) processors for code acquisition in a homogeneous and a nonhomogeneous environment. The performance characteristics of the CA, GO, and SO processors are analyzed and compared when receiving antenna diversity is employed in the pseudonoise code acquisition of direct-sequence code-division multiple-access systems. From the simulation results, it is observed that the GO CFAR scheme has the best performance in a nonhomogeneous environment and has almost the same performance as the CA CFAR scheme in a homogeneous environment.

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Vehicular Technology, IEEE Transactions on  (Volume:56 ,  Issue: 4 )