Performance evaluation of 2D RAKE algorithms for WCDMA-DL applications at the handset

• Published in: Proceedings. 2004 IEEE Radio and Wireless Conference (IEEE Cat. No.04TH8746) pp. 367 - 370
• Main Authors: Mostafa, R., Khanna, P., Woo Cheol Chung, Jin Woo Heo, Reed, J.H., Ha, D.S.
• Format: Conference Proceeding
• Language: English
• Published: Piscataway NJ IEEE 2004
• Subjects: Antennas; Applied sciences; Downlink; Equipments and installations; Exact sciences and technology; Fading; Hardware; Measurement; Mobile radiocommunication systems; Multiaccess communication; Multipath channels; Radiocommunications; Receiving antennas; Services and terminals of telecommunications; Signal to noise ratio; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Telephone sets; Telephone. Videophone; Testing; Transmission and modulation (techniques and equipments); Performance evaluation; Mobile radiocommunication; Mobile phone; Error estimation; 3G mobile communication; Wireless telecommunication; Error rate; Adaptive antenna arrays; Transmission channel; Wide band transmission; Downlink; Telecommunication standards; Algorithm; Circuit complexity; Block error rate; Mean square error; Code division multiple access; Rake receiver; Feasibility; Signal to interference plus noise ratio; Receiving antenna; Signal to noise ratio
• ISBN: 0780384512; 9780780384514
• DOI: 10.1109/RAWCON.2004.1389152

Several 2D RAKE algorithms have been evaluated for performance improvement over a conventional single antenna RAKE receiver at the handset for WCDMA downlink air interface. The main focus of the research is to study the feasibility of smart antenna algorithms for handset application and to identify the best candidate algorithm in terms of performance improvement (BLER) and relative hardware complexity (power and area requirements on a chip). The candidate algorithms are based on the following performance metrics: maximum signal-to-noise ratio (MSNR), maximum signal-to-interference-plus-noise ratio (MSINR) and minimum mean squared error (MMSE). The algorithms have been investigated for hardware complexity based on TSMC 0.18 /spl mu/m technology. 3GPP specified propagation channels and test conditions have been employed to evaluate coded BLER performance. The improvement in error rate performance combined with relative hardware complexity are used to assess the feasibility of an algorithm for handset applications.