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  2. Code-division multiple access - Wikipedia

    en.wikipedia.org/wiki/Code-division_multiple_access

    CDMA is analogous to the last example where people speaking the same language can understand each other, but other languages are perceived as noise and rejected. Similarly, in radio CDMA, each group of users is given a shared code. Many codes occupy the same channel, but only users associated with a particular code can communicate.

  3. Multi-carrier code-division multiple access - Wikipedia

    en.wikipedia.org/wiki/Multi-carrier_code...

    Multi-carrier code-division multiple access (MC-CDMA) is a multiple access scheme used in OFDM-based telecommunication systems, allowing the system to support multiple users at the same time over same frequency band. MC-CDMA spreads each user symbol in the frequency domain.

  4. Chip (CDMA) - Wikipedia

    en.wikipedia.org/wiki/Chip_(CDMA)

    In digital communications, a chip is a pulse of a direct-sequence spread spectrum (DSSS) code, such as a pseudo-random noise (PN) code sequence used in direct-sequence code-division multiple access (CDMA) channel access techniques.

  5. List of CDMA terminology - Wikipedia

    en.wikipedia.org/wiki/List_of_CDMA_terminology

    CDG – CDMA Development Group CDMA – Code Division Multiple Access CDR – Call Detail Record Cell site. CIBER – Cellular Intercarrier Billing Exchange Roamer Cibernet. CHAP – Challenge- Handshake Authentication Protocol aka (HDR – High Data Rate) Clearing. Clearinghouse. CLI – Calling Line Identification – See Caller ID

  6. Full-text search - Wikipedia

    en.wikipedia.org/wiki/Full-text_search

    In text retrieval, full-text search refers to techniques for searching a single computer-stored document or a collection in a full-text database. Full-text search is distinguished from searches based on metadata or on parts of the original texts represented in databases (such as titles, abstracts, selected sections, or bibliographical references).

  7. Preferred Roaming List - Wikipedia

    en.wikipedia.org/wiki/Preferred_Roaming_List

    The Preferred Roaming List (PRL) is a database residing in a wireless (primarily CDMA) device, such as a cellphone, that contains information used during the system selection and acquisition process. In the case of R-UIM-based CDMA devices, the PRL resides on the R-UIM.

  8. Demand Assigned Multiple Access - Wikipedia

    en.wikipedia.org/wiki/Demand_Assigned_Multiple...

    Demand Assigned Multiple Access (DAMA) is a technology used to assign a channel to clients that do not need to use it constantly. DAMA systems assign communication channels based on news issued from user terminals to a network security system.

  9. MC-CDMA - Wikipedia

    en.wikipedia.org/wiki/MC-CDMA

    MC-CDMA may stand for: Multi-carrier code-division multiple access , a multiple access technology used in telecommunication systems based on OFDM . A variant of the mobile communication standard CDMA2000 , where three or more pairs of 1.25 MHz radio channels are used together so that higher data rates can be achieved.