Approximation method for deriving transmission efficiency in direct-sequence spread ALOHA communications system using a unified spread code

Tohru Kikuta, Fumihito Sasamori, Fumio Takahata

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    Considering that the application of the directsequence slotted spread ALOHA communications system to access/ control channel is effective in communications systems with traffic channels operating at CDMA mode, the spread ALOHA communications system is discussed in terms of the system configuration and transmission efficiency. The transmission efficiency of the spread ALOHA communications system using a unified spread code is derived by means of two methods. One is based on the simulation of demodulation algorithm, and the other is based on the approximation by modeling. It becomes obvious from quantitative evaluation in terms of the probability of packet success and the throughput performance that the approximated results coincide with the simulated results, and that the modeling is very effective to estimate the transmission efficiency of the spread ALOHA communications system.

    Original languageEnglish
    Pages (from-to)2500-2507
    Number of pages8
    JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
    VolumeE80-A
    Issue number12
    Publication statusPublished - 1997

    Fingerprint

    Approximation Methods
    Communication Systems
    Communication systems
    Demodulation
    Quantitative Evaluation
    Code Division multiple Access
    Access Control
    Modeling
    Access control
    Code division multiple access
    Throughput
    Traffic
    Configuration
    Approximation
    Estimate
    Simulation

    Keywords

    • Approximation
    • Direct-sequence slotted spread aloha
    • Packet collision
    • Probability of packet success
    • Throughput

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Hardware and Architecture
    • Information Systems

    Cite this

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    abstract = "Considering that the application of the directsequence slotted spread ALOHA communications system to access/ control channel is effective in communications systems with traffic channels operating at CDMA mode, the spread ALOHA communications system is discussed in terms of the system configuration and transmission efficiency. The transmission efficiency of the spread ALOHA communications system using a unified spread code is derived by means of two methods. One is based on the simulation of demodulation algorithm, and the other is based on the approximation by modeling. It becomes obvious from quantitative evaluation in terms of the probability of packet success and the throughput performance that the approximated results coincide with the simulated results, and that the modeling is very effective to estimate the transmission efficiency of the spread ALOHA communications system.",
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    AU - Sasamori, Fumihito

    AU - Takahata, Fumio

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