CDMA advantages and disadvantages

The term CDMA full from is Code Division Multiple Access. It is one type of cellular technology in which two main system Base system and mobile subscriber or users. It allows multiple transmitters to transmit information over a single channel simultaneously. CDMA system works based on spread spectrum concept. This article gives information about the advantages and disadvantages of CDMA to know more about CDMA technology. 

Advantages of CDMA : 

  • CDMA channel is not easily decodable hence it offers increases cellular communication securities
  • Call quality is better with more consistent sound as compared to GSM
  • Less interference due to hand off features reduces call dropping
  • Gives better coverage and needs few antenna sites and also consumes less power
  • Increase user capacity because of more users per MHz of bandwidth than any other system so that it has 4 to 5 times capacity than GSM
  • Better multipath performance
  • The frequency reuse plan is easier to manage
  • Smaller phones
  • Greatest spectrum efficiency
  • Low power requirement
  • Increase efficiency as it can serve more users
  • High voice quality as well as signal quality
  • Flexible allocation of resources
  • Operate at a very low power level
  • CDMA does not require any synchronization
  • It has many numbers of users can share in the same bandwidth
  • Efficient practical utilization of fixed frequency spectrum
  • No sense of handoff when changing cells
  • Easy to add many numbers of users
  • Increase user resources
  • Impossible for hackers to decipher the code sent

Disadvantages of CDMA :

  • Time synchronization is required
  • It can't offer international roaming, a large GSM advantage
  • The CDMA system performance degrades with an increase in the number of users
  • A network of CDMA is not mature because it is relatively new with GSM
  • In while we are using CDMA, code length can be carefully selected, because it can induce delay
  • When the number of users increases, the overall quality of service decreases.
  • Self-jamming problem
  • The near-far problem arises when we are using CDMA techniques
  • Higher cost due to the greater equipment
  • Reduce capacity because gradual transfer increases the use of radio resources

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