Browse > Article

Investigation of AGA Effect on Performance analysis of a Multicode CDMA system equipped with an MPIC  

Ko, Kyun-Byoung (Information & Control Engineering at Chungju National University)
Seo, Jeong-Tae (Information & Control Engineering at Chungju National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.45, no.8, 2008 , pp. 75-81 More about this Journal
Abstract
The authors present a more accurate analysis of the bit error rate (BER) performance for multicode code division multiple access (CDMA) systems equipped with a multipath interference canceler (MPIC) over multipath fading channels. At first, we consider the problem of previous researches. It is that the previous analyses do not match with simulations even in the case without MPIC. This mismatch also causes the difference between the analysis and simulations when an MPIC is applied. Therefore, what is needed is to verify the reason of this mismatch at the initial stage. Numerical results obtained from the proposed analytical method indicate that the performance mismatch between the previous analysis and simulations is caused by not fie Gaussian approximation which is generally used at the performance analysis of CDMA systems but the additional Gaussian approximation (AGA) for multipath interferences. Based on this effect, we propose a more accurate performance analysis not using AGA and its accuracy is verified by simulations. Furthermore, it is confirmed that the proposed analysis presents an analytical lower bound which can be achieved by MPIC.
Keywords
MPIC; Multicode CDMA; Multipath fading channel; AGA;
Citations & Related Records
연도 인용수 순위
  • Reference
1 J. Chen, J. Wang, and M. Sawahashi, 'MCI Cancellation for Multicode Wideband CDMA Systems,' IEEE J. of Selected Areas in Comm., vol. 20, no. 2, pp. 450-462, Feb. 2002   DOI   ScienceOn
2 William H. Tranter, K. Sam Shanmugan, Theodore S. Rappaport, and Kurt L. Kosbar, Communication Systems Simulation with Wireless Applications. Prentice Hall, 2004
3 'Physical Layer Aspects of UTRA High Speed Downlink Packet Access,' 3GPP TS 25.848
4 K. Higuchi, A. Fujiwara, and M. Sawahashi, 'Multipath Interference Canceller for High-Speed Packet TransmissionWith Adaptive Modulation and Coding Scheme in W-CDMA Forward Link,' IEEE J. of Selected Areas in Comm., vol. 20, no. 2, pp. 419-432, Feb. 2002   DOI   ScienceOn
5 KyunByoung Ko, Myonghee Park, and Daesik Hong, 'Performance Analysis of Asynchronous MC-CDMA systems with a Guard Period in the form of a Cyclic Prefix,' IEEE Trans. on Comm., vol. 54, no. 2, pp. 216-220, Feb. 2006   DOI   ScienceOn
6 John G. Proakis, Digital Communication. McGraw Hill, 1995
7 KyunByoung Ko, Dongseung Kwon, Daesoon Cho, Changeon Kang, and Daesik Hong, 'Performance analysis of a multistage MPIC in 16-QAM CDMA systems over multipath rayleigh fading channels,' in Proc. IEEE VTC 2003-Spring, vol. 4, pp. 2807-2811, JEJU, KOREA, 22-25 April 2003
8 Kyunbyoung Ko, Mansic Joo, Hansup Lee, and Daesik Hong, 'Performance Analysis for Multistage Interference Cancellers in Asynchronous DS-CDMA Systems,' IEEE Comm. Letters, vol. 6, no. 12, pp. 544-546, Dec. 2002   DOI   ScienceOn