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Simulation, implementation and performance evaluation of a diversity enabled WCDMA mobile terminal

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Smart antenna array technology has been shown to greatly improve the performance of wireless communication systems. In this article, we describe the impact of smart antenna array processing at the mobile terminal for Wideband Code Division Multiple Access (WCDMA) cellular networks. Using system simulations we demonstrate the quality of service, network coverage, and network capacity improvement provided by a WCDMA dual antenna receiver and we establish a relationship between this improvement and the link level performance. We then describe a receiver architecture for a dual antenna WCDMA mobile receiver. The proposed receiver was implemented, as part of a complete mobile terminal solution, in an ASIC using a 0.18 μm, 1.8 V CMOS technology. The ASIC was integrated with RF, analog and digital components in a PCMCIA card form factor. The PCMCIA is a 3GPP compliant user equipment and has been submitted to standardized performance and conformance tests. Experimental measurements gathered with the PCMCIA card illustrate the impact of a diversity enabled mobile data terminal on the link level performance. For various propagation environments and transmission data rates, improvements in the range of 2.7 – 10 dB in the required DPCH I c/I or for a 1% Block Error Rate (BLER) were observed. These measurements are within 1.4 dB of the ideal link level simulations which indicates that the predicted improvement at the network level should also materialize. The results presented in this paper show the tremendous potential of smart antenna arrays in 3G WCDMA cellular networks and establish diversity as a viable solution for high-speed cellular communications.

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  1. 1.

    3rd Generation Partnership Project TS 25.101–User Equipment (UE) radio transmission and reception (FDD)—Release 99 Version 3.17.0.

  2. 2.

    Cardoso F.A.C.M., Fernades M.A.C., Arantes D.S. (2002). Space–time processing for smart antennas in advanced receivers for the user terminal in 3G WCDMA systems. IEEE Transactions on Consumer Electronics 48, 1082–1090

  3. 3.

    ElTawil, A. M., Grayver, E., Zou, H., Frigon, J. F., Poberezhskiy, G., & Daneshrad, B. (2003). Dual antenna UMTS mobile station transceiver ASIC for 2 Mb/s data rate. In Proceedings of the IEEE international solid-state circuits conference (ISSCC), San Francisco, CA, USA, Vol. 46, pp. 146–147.

  4. 4.

    Frigon J.F., Daneshrad B. (2002). Field measurements of an indoor high-speed QAM wireless system using decision feedback equalization and smart antenna array. IEEE Transactions on Wireless Communications 1: 134–144

  5. 5.

    Grayver, E., ElTawil, A. M., Zou, H., Li, Y., & Lin, V. (2003). Dual antenna UMTS mobile transceiver SoC for 2MBs data rate. In Proceedings of the world wireless congress. San Francisco, CA, USA.

  6. 6.

    Grayver E., Frigon J.F., ElTawil A., Tarighat A., Shoarinejad K., Abbasfar A.A., Cabric D., Daneshrad B. (2005). Design and VLSI implementation for a WCDMA multipath searcher. IEEE Transactions on Vehicular Technology 54: 889–902

  7. 7.

    Holma H., Toskala A. (2002), WCDMA for UMTS 2nd ed. New york, Wiley

  8. 8.

    Lozano, A. (2002). Enhancing UMTS high-speed downlink packet access with dual-antenna terminals. In Proceedings of the IEEE global telecommunications conference (GLOBECOM), Taipei, Taiwan. Vol. 1, pp. 732–736.

  9. 9.

    Mostafa, R., Khanna, P., Chung, W. C., Heo, J. W., & Ha, D. S. (2004). Performance evaluation of 2D RAKE algorithms for WCDMA-DL: The handset. In Proceedings of the IEEE radio and wireless conference, Atlanta, CA, USA. pp. 367–370.

  10. 10.

    Pahlavan K., Zahedi A., Krishnamurthy P. (1997). Wideband local access: Wireless LAN and wireless ATM. IEEE Communications. Magazine 35, 34–40

  11. 11.

    Rappaport, T. S. (1996). Wireless communications—wireless and practice. Upper Saddle River: Prentice Hall PTR.

  12. 12.

    Stüber G.L. (1996). Mobile Communication. Dordrecht, Hinghamn, MA : Kluwer

  13. 13.

    Tantikovit S., Wang M.Z. (2002). An optimum combining and concatenated-RAKE for dual-antenna mobile terminals in UMTS. IEEE Communications Letters 6, 231–233

  14. 14.

    Ventola, M., Tuomaala, E., & Ranta, P. A. (2003). Performance of dual antenna diversity reception in WCDMA terminals, In Proceedings of the IEEE vehicular technology conference (VTC), Jeju, South Korea, Vol. 2, pp. 1035–1040.

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Correspondence to Jean-François Frigon.

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Frigon, J., Eltawil, A.M., Daneshrad, B. et al. Simulation, implementation and performance evaluation of a diversity enabled WCDMA mobile terminal. Wireless Pers Commun 43, 1101–1112 (2007). https://doi.org/10.1007/s11277-007-9286-z

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  • Smart antenna array
  • Space–time communication
  • Diversity
  • Wireless system design
  • Wireless testbed
  • Performance evaluation
  • Mobile terminal