Codes

CDMA-DSSS with orthogonal codes and BPSK modulation proper way to demodulate

CDMA-DSSS with orthogonal codes and BPSK modulation proper way to demodulate
  1. How do you generate orthogonal codes in CDMA?
  2. What is orthogonal codes in CDMA?
  3. What is chip sequence in CDMA?

How do you generate orthogonal codes in CDMA?

This is achieved through the use of spreading codes, whereby a single data bit is "spread" over a longer sequence of transmitted bits. These codes, known as chip sequences, must be carefully chosen so that the data may be correctly "despread" at the receiver.

What is orthogonal codes in CDMA?

An optical orthogonal code (OOC) is a family of (0,1) sequences with good auto- and cross-correlation properties; they are used as a means to obtain code division multiple access (CDMA) on fiber optic networks. Previous work on OOC has assumed that the weight of each codeword is the same.

What is chip sequence in 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.

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