Basics of CDMA

In Code Division Multiple Access (CDMA) systems the narrowband message signals are multiplied by spreading signals. All users in CDMA uses same carrier frequency and can transmit simultaneously. The spreading signals are pseudo random code. The features of CDMA are as follows:


  1. Many users of a CDMA systems share same frequency.
  2. Unlike TDMA and FDMA, CDMA has a soft capacity limit. Increasing the number of users in CDMA systems increases the noise.
  3. Multipath fading in CDMA is reduced.
  4. Channel data rates are very high in CDMA.
  5. CDMA provides better handoffs, mostly it gives soft handoffs.
  6. Self jamming is a problem in CDMA.
  7. The near-far problem occurs in CDMA if the user at receiver has a high detected power than desired one.
  8. CDMA is used in Wideband only.

The features of TDMA and FDMA are discussed separately in other posts. Click on simultaneous links to access the features of FDMA and TDMA.
Labels: , , , ,

21 comments:

  1. Unknown18 March 2017 at 15:09

    Insightful information shared. One can also know the architecture colleges in maharashtra through nata only at SMMCA Nagpur. Thanks for sharing.

    ReplyDelete
  2. gream27 October 2017 at 15:32

    We provide you with fun and bets with us. Our camp is the first popular game in online casino and online gaming. Nowadays it is getting hot and fashionable. Golden slot We strive to provide customer satisfaction services. You can play in a variety of ways by installing it on your PC or downloading it on your smartphone or computer. Here you can play as a team every day, all the time with the way we also have the role of playing the game online. Every gamer has access to the service, because the online games are abundant and full of fun. Every user of the game has come to meet the demands of online gaming with a great deal of challenges and immense. สล็อตออนไลน์ In addition, we have the experience of playing online games. Come and experience the coveted online gaming experience with all your eagerness to play online games with ease. Every gamer can easily get in and out of the game 24 hours a day.

    ReplyDelete
  3. Unknown21 November 2017 at 14:12

    Thanks for sharing the information.

    Electronic waste disposal bangalore, India
    Computer waste disposal bangalore, India

    ReplyDelete
  4. DITUniversity16 March 2018 at 14:30

    DIT University is offering Electronics and Communication engineering in Uttarakhand is based on world class standard.

    ReplyDelete
  5. Anonymous22 March 2018 at 12:19

    Nicely Explained. You can also explore About CDMA Technology which covers advantages, limitations, working, working and some Terminology. Engineers Garage is the online community for Electrical & Electronics Engineering students where they will explore latest electronics projects and circuit diagrams. It's a complete hub for Electronics projects for final year students.

    ReplyDelete
  6. Unknown17 September 2018 at 16:39

    Interested to know the top 10 technologies of 2019? Watch this:https://www.youtube.com/watch?v=-y5Z2fmnp-o&

    ReplyDelete
  7. Ekeeda17 December 2018 at 12:50

    Interesting Article. Hoping that you will continue posting an article having a useful information. Civil Engineering Video Lectures

    ReplyDelete
  8. Infomatica Educations15 January 2019 at 12:02

    Very informative and impressive post you have written, this is quite interesting and i have went through it completely, an upgraded information is shared, keep sharing such valuable information. CET coaching class in Mumbai

    ReplyDelete
  9. Infomatica Educations25 April 2019 at 17:12

    Very interesting blog Really excellent information and thank you for giving your valuable information. mh cet registration

    ReplyDelete
  10. gulmiszerihg3 December 2019 at 11:25

    Wonderful blog! Do you have any hints for aspiring writers? I'm hoping to start my own blog soon but I'm a little lost on everything. Would you advise starting with a free platform like Wordpress or go for a paid option? There are so many options out there that I'm totally overwhelmed .. Any recommendations? Thank you!
    mejorar Procesos de Negocio

    ReplyDelete
  11. Unknown7 January 2020 at 17:47

    thanks for the basic CDMA information , really its a qualitative content ,if anyone is looking for more information related to Electronics and Communication Engineering do Visit : https://ekeeda.com/branch/electronics-and-communication-engineering

    ReplyDelete
  12. ekeeda0017 January 2020 at 17:53

    its really appreciative work , it is really very helpful content for the students , i definitely recommend this blog to others , if any one want to know more about Online Electronics and Communication Engineering , do Visit : Electronics and Communication Engineering

    ReplyDelete
  13. Prerna3 March 2020 at 12:06

    Thank you for sharing useful information with us. please keep sharing like this.
    And if anyone like to take admission in Jaipur then check this
    Top 10 engineering college in Jaipur

    ReplyDelete
  14. RobertNelson22 March 2020 at 00:58

    Wow what a great blog, i really enjoyed reading this, good luck in your work. Ninjatrader Trading Systems

    ReplyDelete
  15. Technical Products4 November 2020 at 11:28

    I am glad that I saw this post. It is informative blog for us and we need this type of blog thanks for share this blog, Keep posting such instructional blogs and I am looking forward for your future posts.
    For any graphtec data logger
    For any Data Logger Dealers
    For any graphtec dealers
    For any graphtec data logger gl840

    ReplyDelete
  16. Радомир Эра20 November 2020 at 08:01

    If you had financial problems, then it is time for you to smile. You only need to contact Mr. Benjamin  with the amount you wish to borrow at the low rate of 2% ROI and the payment period that suits you and you will have your loan  within three working days. I just benefited for the sixth time a loan of 700 thousand dollars for a period of 180 months with the possibility of paying before the expiration date. Mr Benjamin has been helping me with the loan.Make contact with him and you will see that he is a very honest man with a good heart.His email is  247officedept@gmail.com   and his WhatApp phone number is + 1-989-394-3740 .

    ReplyDelete
  17. Online Genius Tutors3 January 2021 at 15:38

    Basic Electrical and Electronics Engineering (Online Live Classes). https://onlinegeniustutors.com/course/detail/basic-ece131?id=732

    ReplyDelete
  18. StevenHWicker18 March 2021 at 23:34

    Thanks a lot for sharing this amazing knowledge with us. This site is fantastic. I always find great knowledge from it. What is UCAT

    ReplyDelete
  19. Easy Shiksha26 June 2021 at 17:40

    Great Blog I Have Read Your Blog It Is Very Useful For Me Thank you for posting and sharing such great information.can you help me in finding out more about Communication Basics & Strategies.

    ReplyDelete
  20. Sajjad Ahmed10 July 2021 at 15:46

    Nice Blog. Thanks for sharing with us. Such amazing information.

    Best Engineering College in Dehradun

    Best B.Sc. Agriculture College in Dehradun

    Best Polytechnic College in Dehradun

    Best BBA College in Dehradun

    Best MBA College in Dehradun

    ReplyDelete
  21. priya31 March 2023 at 13:40

    Its a good post and keep posting good article.its very interesting to read.
    FCC CDMA Dish Boost Mobilefriedaxios

    ReplyDelete

Subscribe to: Post Comments (Atom)