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Characterization of the Required Signal Power for Multimedia Traffic in DS-CDMA 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

The reverse link signal power required for multimedia traffic in multipath faded single-code (SC-) and multi-code CDMA (MC-CDMA) systems is investigated. The effect of orthogonality loss among multiple spreading code channels is herein characterized by the orthogonality factor. The required signal power in both the CDMA systems is then analyzed consiering varying system parameters including spreading bandwidth, the orthogonality factor, and the number of spreading codes. Analytical results show that the required signal power in the CDMA systems significantly increases as the orthogonality factor and spreading bandwidth decrease. Furthermore, MC-CDMA users require power levels approximately identical to SC-CDMA users when multimedia traffic utilizes a wide bandwidth. The results can be used in the design of radio resource management (e.g., power allocation) schemes for wireless multimedia systems.

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References

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Author information

Authors and Affiliations

  1. Mobile Telecommunication Research Laboratory, Electronics and Telecommunications Research Institute (ETRI), Yusong, P.O. Box 106, 305-350, Taejon, Korea

    Chang Soon Kang, Sung Gu Choi, Nam Jin Park & Ki Seok Kim

Authors
  1. Chang Soon Kang
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  2. Sung Gu Choi
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  3. Nam Jin Park
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  4. Ki Seok Kim
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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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Soon Kang, C., Gu Choi, S., Jin Park, N., Seok Kim, K. (2003). Characterization of the Required Signal Power for Multimedia Traffic in DS-CDMA 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_2

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  • DOI: https://doi.org/10.1007/3-540-36555-9_2

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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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