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Hybrid sequential acquisition schemes for noncoherent chip-asynchronous DS/SS systems

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2 Author(s)
Hosangadi, G.S. ; Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA ; Baum, C.W.

This paper investigates the design and performance of hybrid sequential and nonsequential acquisition schemes for direct-sequence spread-spectrum (DS/SS) systems in the presence of multiple-access interference. Carrier phase and chip boundary information are not available at the time of acquisition. Simulation results show that the sequential scheme significantly outperforms the nonsequential scheme. For a DS/SS system using the sequential acquisition scheme, the acquisition-based capacity is evaluated and compared with the post acquisition-based capacity. Results show that for certain values of processing gain the system capacity is limited by the acquisition-based capacity

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Communications, 1999. ICC '99. 1999 IEEE International Conference on  (Volume:3 )

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