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The Enhanced Soft Handoff Algorithm for Multirate DS-CDMA Cellular Systems

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Mobile Communications (CIC 2002)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 2524))

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Abstract

In this paper, an enhanced soft hando. algorithm is proposed to improve system capacity for multi-rate DS-CDMA cellular systems. In the algorithm, we first propose a load-based power allocation scheme for serving soft hando. users in the forward link; we next develop two kinds of active set determination mechanism: a quality-based active set control (QBASC) scheme and fuzzy active set control (FASC) scheme, to re-select active set members so as to not only save system resource but also maintain required signal quality. Simulation results show that the proposed enhanced soft hando. algorithms can successfully achieve load balancing between cells. Compared to the conventional soft hando. algorithm, QBASC and FASC schemes can enhance 71.43% and 85.71% system capacity in the multirate DS-CDMA cellular system with hotspot, respectively.

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References

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Author information

Authors and Affiliations

  1. Department of Communication Engineering, National Chiao Tung University, Hsinchu 300, Taiwan, ROC

    Chao Chi Chen, Ching Yu Liao & Chung Ju Chang

Authors
  1. Chao Chi Chen
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  2. Ching Yu Liao
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  3. Chung Ju Chang
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Editor information

Editors and Affiliations

  1. B718 EE Engineering, Dept. of Engineering, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, 120-749, Seoul, Korea

    Jaiyong Lee

  2. Department of Electronic Engineering, Korea University, 5-1 Anam-Dong Sungbuk-Ku, 136-701, Seoul, Korea

    Chul-Hee Kang

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© 2003 Springer-Verlag Berlin Heidelberg

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Chi Chen, C., Yu Liao, C., Ju Chang, C. (2003). The Enhanced Soft Handoff Algorithm for Multirate DS-CDMA Cellular Systems. In: Lee, J., Kang, CH. (eds) Mobile Communications. CIC 2002. Lecture Notes in Computer Science, vol 2524. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-36555-9_27

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  • DOI: https://doi.org/10.1007/3-540-36555-9_27

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-00732-6

  • Online ISBN: 978-3-540-36555-6

  • eBook Packages: Springer Book Archive

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