Applications of CDMA and OFDM

Given below are the Applications of CDMA and OFDM

Applications of CDMA

  • CDMA is immune to noise, it is used in military purpose.
  • Used in digital telephone services.
  • CDMA used for Wireless communication systems.
  • Used in satellite systems.
  • For simultaneous transmission, CDMA is used to combine several data signals.

Applications of OFDM

  • Used in narrow band power line communications and broad band power line communications.
  • Used in Digital Audio Broadcasting and digital radio.
  • Used in Wired and wireless Data Transmission.
  • 4G (fourth Generation) and LTE (Long Term Evolution) Networks use OFDM.
  • Used in Digital Television and Video broadcasting.

Difference Between CDMA and OFDM

Modulation methods are designed to be efficient in transmitting as many bits per hertz as possible. Here the goal is in the given bandwidth these modulation methods have to transmit the data at the highest speed and should minimize the use of spectrum space. Other Modulation methods that use bandwidth greater than the information bandwidth are called wideband modulation techniques. The two widely used wideband Modulation methods are Direct Sequence spread spectrum (DSSS )and orthogonal frequency-division multiplexing (OFDM).CDMA and OFDM both are wide-band wireless communication systems.

Table of Content

  • CDMA
  • OFDM
  • Difference Between CDMA and OFDM
  • Advantages
  • Disadvantages
  • Applications

Similar Reads

What is CDMA?

CDMA stands for Code Division Multiple Access. Direct Sequence Spread Spectrum is also referred to as CDMA. Here, “Multiple Access” means it is used for multiplexing many signals on a single communication channel. CDMA is widely used in cellular telephone systems. Compared to other methods, it allows more users to occupy a given band. Additionally, it facilitates communication with different codes....

What is OFDM ?

OFDM Stands for Orthogonal Frequency-Division Multiplexing. OFDM is also known as Multi Carrier Modulation (MCM). OFDM transmits data by simultaneously modulating segments of the high-speed serial bit stream onto multiple carriers spaced throughout the channel bandwidth....

Difference Between CDMA and OFDM

Specification CDMA OFDM Transmission Bandwidth CDMA transmission bandwidth is Equal to the system bandwidth. OFDM Transmission Bandwidth is Up to the system Bandwidth and is variable. Symbol period Symbol period is Very short and it is opposite to the system bandwidth. Symbol period is Very long and it depends on the spacing of subcarrier and it does not depend on system Bandwidth. Equalization Using of CDMA is very difficult above 5MHz. OFDM is used for all the bandwidths because of frequency domain representation. Domain Signal is represented in time domain. Signal is represented in frequency domain. Synchronization There is a need of time synchronization. No need of any time synchronization. Structure Little complex structure. More complex structure. Cost Cost is low compared to OFDM method. Overall cost is high. MIMO Not Ideal for Multiple Input and Multiple Output(MIMO) system. OFDM is Ideal for Multiple Input and Multiple Output(MIMO) system....

Advantages of CDMA and OFDM

Given below are the Advantages of CDMA and OFDM...

Disadvantages of CDMA and OFDM

Given below are the Disadvantages of CDMA and OFDM...

Applications of CDMA and OFDM

Given below are the Applications of CDMA and OFDM...

Conclusion

As the future technologies May lead the current technologies like CDMA , OFDM. There is no particular answer to select which one method is widely used in the communication systems. Based on the requirements of the technology at a particular place or time will decide the method of technology used for. CDMA, OFDM will play an important roles in communications systems. Making use of their Advantages and in specific application they serve a great purpose in the wired and wireless communication system....

Difference Between CDMA and OFDM – FAQs

Is CDMA is used in wireless networks?...

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