Phase-Shift-Network-Based Differential Sequential Estimation for Code Acquisition in CDMA Systems
Dahae Chong, Byeong-Yun Lee, Sanghun Kim, Young-Bin Joung, Iickho Song, Seokho Yoon · 2007
In this paper, a novel pseudo noise (PN) code acquisition scheme called the phase-shift-network-based differential sequential estimation (PDSE) is proposed, in the presence of data modulation in code division multiple access (CDMA) systems. The PDSE has even less complexity compared with that of the dual correlating sequential estimation (DCSE), and the reduction in complexity becomes more significant as the period of PN code increases. Numerical results demonstrate that the PDSE performs equivalently to the DCSE with less complexity.