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Proceedings Paper

Performance of fixed-point simulations on CDMA2000 downlink
Author(s): Yu Chen; XiaoHu You
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Paper Abstract

Both W-CDMA and cdma2000 are strong candidates for third generation mobile communications systems. Based on the physical layer standard of cdma2000, the performance analysis of fixed-point simulations is presented in this paper on cdma2000 1x downlink. The effects of quantization and finite wordlength, which have typically been assumed negligible in floating-point simulations, become significant for fixed-point simulations. The complete fixed-point simulation platform for cdma2000 1x downlink is developed by EDA tool - COSSAP. The structure and performance of the key component in cdma2000 systems, the RAKE receiver, are discussed in details. Comparisons of results between floating-point and fixed-point simulations lead to some important conclusions, which provide certain references for the implementation of practical systems.

Paper Details

Date Published: 18 October 2001
PDF: 7 pages
Proc. SPIE 4586, Wireless and Mobile Communications, (18 October 2001); doi: 10.1117/12.445252
Show Author Affiliations
Yu Chen, Southeast Univ. (China)
XiaoHu You, Southeast Univ. (China)

Published in SPIE Proceedings Vol. 4586:
Wireless and Mobile Communications
Hequan Wu; Jari Vaario, Editor(s)

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