Effect of Delay Spread on Multi-Bandwidth CDMA System with Multiple Order Selection Combining
Summary :
In a multi-bandwidth CDMA system, the performance of a multiple order selection combining rake receiver is analyzed according to the spreading bandwidth of the system and the delay spread of a Rayleigh fading channel. The results for various channel environments indicate a tradeoff between total received signal energy and multipath fading immunity. Increasing the occupied bandwidth of the system (wide-bandwidth spreading) gives better performance for small delay spread environments, while gathering more energy (narrow-bandwidth spreading) gives better performance for large delay spread environments. It is also shown that the performance difference between low and high order selection combining grows larger as the spreading bandwidth is increased. It is noted that performance degrades by increasing the bandwidth above a certain point and the optimum spreading bandwidth for each channel environment decreases as the delay spread of the channel increases.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E81-A No.11 pp.2418-2425
- Publication Date
- 1998/11/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Category
- Spread Spectrum Technologies and Applications
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Soon-Yil KWON, Een-Kee HONG, Ki-Jun KIM, Keum-Chan WHANG, "Effect of Delay Spread on Multi-Bandwidth CDMA System with Multiple Order Selection Combining" in IEICE TRANSACTIONS on Fundamentals,
vol. E81-A, no. 11, pp. 2418-2425, November 1998, doi: .
Abstract: In a multi-bandwidth CDMA system, the performance of a multiple order selection combining rake receiver is analyzed according to the spreading bandwidth of the system and the delay spread of a Rayleigh fading channel. The results for various channel environments indicate a tradeoff between total received signal energy and multipath fading immunity. Increasing the occupied bandwidth of the system (wide-bandwidth spreading) gives better performance for small delay spread environments, while gathering more energy (narrow-bandwidth spreading) gives better performance for large delay spread environments. It is also shown that the performance difference between low and high order selection combining grows larger as the spreading bandwidth is increased. It is noted that performance degrades by increasing the bandwidth above a certain point and the optimum spreading bandwidth for each channel environment decreases as the delay spread of the channel increases.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e81-a_11_2418/_p
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@ARTICLE{e81-a_11_2418,
author={Soon-Yil KWON, Een-Kee HONG, Ki-Jun KIM, Keum-Chan WHANG, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Effect of Delay Spread on Multi-Bandwidth CDMA System with Multiple Order Selection Combining},
year={1998},
volume={E81-A},
number={11},
pages={2418-2425},
abstract={In a multi-bandwidth CDMA system, the performance of a multiple order selection combining rake receiver is analyzed according to the spreading bandwidth of the system and the delay spread of a Rayleigh fading channel. The results for various channel environments indicate a tradeoff between total received signal energy and multipath fading immunity. Increasing the occupied bandwidth of the system (wide-bandwidth spreading) gives better performance for small delay spread environments, while gathering more energy (narrow-bandwidth spreading) gives better performance for large delay spread environments. It is also shown that the performance difference between low and high order selection combining grows larger as the spreading bandwidth is increased. It is noted that performance degrades by increasing the bandwidth above a certain point and the optimum spreading bandwidth for each channel environment decreases as the delay spread of the channel increases.},
keywords={},
doi={},
ISSN={},
month={November},}
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TY - JOUR
TI - Effect of Delay Spread on Multi-Bandwidth CDMA System with Multiple Order Selection Combining
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2418
EP - 2425
AU - Soon-Yil KWON
AU - Een-Kee HONG
AU - Ki-Jun KIM
AU - Keum-Chan WHANG
PY - 1998
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E81-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 1998
AB - In a multi-bandwidth CDMA system, the performance of a multiple order selection combining rake receiver is analyzed according to the spreading bandwidth of the system and the delay spread of a Rayleigh fading channel. The results for various channel environments indicate a tradeoff between total received signal energy and multipath fading immunity. Increasing the occupied bandwidth of the system (wide-bandwidth spreading) gives better performance for small delay spread environments, while gathering more energy (narrow-bandwidth spreading) gives better performance for large delay spread environments. It is also shown that the performance difference between low and high order selection combining grows larger as the spreading bandwidth is increased. It is noted that performance degrades by increasing the bandwidth above a certain point and the optimum spreading bandwidth for each channel environment decreases as the delay spread of the channel increases.
ER -
English
