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 Special Issue Topics

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Open Access
Special Issue
Topic

Usage of direct sequence CDMA in the analysis of mobile radio systems

Guest Editor:

        • Abstract Submission Deadline : 30/11/2023

        Manuscript Submission Deadline : 25/12/2023

        [This article belongs to Special Issue Usage of direct sequence CDMA in the analysis of mobile radio systems under section ijbcc, ijbcc in (ijbcc, ijbcc)]

        Special Issue Description

        A code sequence is multiplied by the user data signal in direct sequence spread spectrum transmission. The most common sequences are binary ones. The “chip time” refers to the length of a code element. The spread factor is the ratio of the chip time to the user symbol time. The transmit signal takes up a bandwidth equal to the user data bandwidth multiplied by the spread factor. For mobile radio communications, a code-division multiple-access strategy is proposed that needs a smaller set of code sequences—one that is far smaller than the number of users in the system. To take advantage of the high time resolution and prevent fading effects through multipath diversity reception, direct-sequence spread-spectrum signaling is used. The received signal is once more multiplied by the same (synchronized) code in the receiver. This action gets rid of the code. The Near-Far effect is a major challenge in Direct Sequence transmission. The cross-correlation between the codes of the reference user and the interferer reduces the incoming interference power when multiple users are engaged. The interference components may not be properly attenuated by the despreading method if the interferer is closer to the receiver than the reference user. The main purpose of the spread-spectrum modulation technology known as direct-sequence spread spectrum (DSSS) is to lessen overall signal interference. The transmitted signal has greater bandwidth than the information bandwidth thanks to direct-sequence modulation. The information bandwidth is restored and the amount of accidental and intentional interference is significantly decreased after the despreading or elimination of the direct-sequence modulation in the receiver.

        Editor Keywords

        Mobile communication, Spread spectrum communication, Signal resolution, Fading, Performance analysis, Error analysis, Direct-sequence CDMA mobile radio system, Code sequences, Direct-sequence spread-spectrum signaling, High-time resolution & fading effects

        Manuscript Submission information

        Manuscripts should be submitted online by registering and logging in to this link. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed.
        Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent on email address:[email protected] for announcement on this website.

        Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page.

        Participating journals:

        Journal Name

        International Journal of Broadband Cellular Communication, International Journal of Broadband Cellular Communication

        Abbrivation

        ijbcc, ijbcc

        ISSN

        2455-8532, 2455-8532

        Since

        2015

        APC

        950  $