Performance of fixed-point simulations on CDMA2000 downlink

Yu Chen; XiaoHu You

doi:10.1117/12.445252

18 October 2001 Performance of fixed-point simulations on CDMA2000 downlink

Yu Chen, XiaoHu You

Proceedings Volume 4586, Wireless and Mobile Communications; (2001) https://doi.org/10.1117/12.445252
Event: Asia-Pacific Optical and Wireless Communications Conference and Exhibit, 2001, Beijing, China

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.

Citation Download Citation

Yu Chen and XiaoHu You "Performance of fixed-point simulations on CDMA2000 downlink", Proc. SPIE 4586, Wireless and Mobile Communications, (18 October 2001); https://doi.org/10.1117/12.445252

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