[1] Chen Yu**, You Xiaohu,. Performance Analysis of Fixed-Point Simulationson cdma2000-1x Downlink* [J]. Journal of Southeast University (English Edition), 2002, 18 (1): 1-5. [doi:10.3969/j.issn.1003-7985.2002.01.001]

Copy

Performance Analysis of Fixed-Point Simulationson cdma2000-1x Downlink^*()

Share：

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

18

Issue:

2002 1

Page:

1-5

Research Field:

Information and Communication Engineering

Publishing date:

2002-03-30

Info

Title:

Performance Analysis of Fixed-Point Simulationson cdma2000-1x Downlink^*

Author(s):

Chen Yu^**;  You Xiaohu

National Mobile Communication Research Laboratory, Southeast University, Nanjing 210096, China

Keywords:

cdma2000;  fixed-point simulation;  RAKE receiver

PACS:

TN929.533

DOI:

10.3969/j.issn.1003-7985.2002.01.001

Abstract:

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.

References:

[1] Proakis J G. Digital communications[M]. 3rd ed. New York: McGraw-Hill, 1995.758-787.
[2] Viterbi A J. CDMA principles of spread spectrum communications[M]. Reading Mass: Addison-Wesley Publishing Company, 1995. 80-88.
[3] Rappaport T S. Wireless communications principles and practice[M]. Prentice Hall Inc., 1996. 105-108.
[4] TIA/EIA/IS-2000-2, Physical layer standard for cdma2000 spread spectrum system [EB/OL]. http://www.3gpp2.org/Public-html/specs/C.S0002-A-1.pdf. 2000-09-12/2001-08-30.
[5] Cheun K. Performance of direct-sequence spread-spectrum RAKE receivers with random spreading sequences [J]. IEEE Trans Commun, 1997, 45(9): 1130-1143.

Memo

Memo:

* The project supported by the National Natural Science Foundation of China(69725001)and Jiangsu Southeast University Communications Co. Ltd.(SeuComm).
** Born in 1974, male, graduate.

Common functions