RAKE Receiver for Time Division Synchronous CDMA Mobile Terminal

다국어 초록 (Multilingual Abstract)

For the sake of the potential ability of overcoming interference in TD-SCDMA(time division-synchronous code division multiple access) systems, pilot signal is adopted, but the presented TD-SCDMA protocol has not considered the Rake technique for their mobile terminals. This paper developed a RAKE receiver algorithm and an implementation circuit, which make use of the pilot signal in the burst structure of the TD-SCDMA base station to estimate main channel parameter(channel delays) in the downlink of TD-SCDMA wireless network. The algorithm can reduce multipath interference for the mobile units in multiusers' case. Theoretic performance analysis presented in the paper and computer simulations show that there is a range of BER for Rake receiver and confirm that the proposed RAKE receiver algorithm achieved a better performance under multipath fading propagation and multiusers conditions.

목차 (Table of Contents)

• Abstract
• Ⅰ. Introduction
• Ⅱ. The Burst Structure of TD-SCDMA
• Ⅲ. Digital Detection Algorithm
• Ⅳ. Performance of Rake Receivers with Imperfect Channel Estimation
• Ⅴ. Performance Evaluation
• Ⅵ. Conclusion
• References
• 저자소개

참고문헌 (Reference)

1 Y. Song, "The performance of pre-RAKE diversity combining based on QPSK modulation in TDD-CDMA mobile communications" 1351-1354, 2002.

2 White Paper, "TD-SCDMA: the Solution for TDD bands" apr.2001.

3 M. Abou-Khousa, "SIR-based RAKE receiver finger assignment algorithm" 2 : 639-642, dec.2003.

4 M. Abou-Khousa, "SIR-based RAKE receiver finger assignment algorithm" 2 : 639-642, dec.2003.

5 R. Esmailzadeh, "PreRAKE diversity combining in time-division duplex CDMA mobile communications" 48 (48): 795-801, 1999

6 Y. Xiao, "Pre-Rake diversity combining in TD-SCDMA mobile communications" 25 (25): 39-44, 2003.

7 C. Tao, "Optimization of pilot symbol-assisted RAKE receivers for DS-CDMA systems" 2 : 1056-1060, 2004

8 K. Higuchi, "Experimental evaluation of combined effect of coherent RAKE combining and SIR-based fast transmit power control for reverse link of DS-CDMA mobile radio" 18 (18): 1526-1535, aug.2000.

9 C. D'Amours, "Comparison of pilot symbol-assisted and differentially detected BPSK for DS-CDMA systems employing RAKE receivers in Rayleigh fading channels" 47 (47): 1258-1267, nov.1998.

10 CWTS TSM 01.01 V3.0.0, "China Wireless Telecommunication Standard; 3 G digital cellular telecommunications system" 3-3, 2002

11 H. Andoh, "Channel estimation using time multiplexed pilot symbols for coherent RAKE combining for DS-CDMA mobile radio" 3 : 954-958, 1997

12 Romano Fantacci, "An efficient RAKE receiver architecture with pilot signal cancellation for downlink communications in DS-CDMA indoor wireless network" 47 (47): 823-827, jun.1999.

13 Y. Xiao, "A RAKE receiver for TD-SCDMA mobile terminals" 2 : 1228-1232, 2004