Signal to interference ratio for CDMA

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SUMMARY

The discussion centers on the challenge of determining the signal to interference ratio (SIR) for Code Division Multiple Access (CDMA) systems that do not utilize frequency hopping or direct sequence techniques. The original poster has already acquired the SIR equations for both frequency hopping and direct sequence CDMA but seeks an alternative equation for non-spread spectrum CDMA systems. The consensus among participants suggests that deriving such an equation is not feasible due to the inherent nature of CDMA technology.

PREREQUISITES
  • Understanding of CDMA technology and its principles
  • Familiarity with signal to interference ratio (SIR) concepts
  • Knowledge of spread spectrum techniques, including Direct Sequence and Frequency Hopping
  • Basic principles of communications engineering
NEXT STEPS
  • Research the fundamentals of CDMA without spread spectrum techniques
  • Explore advanced communications engineering textbooks for SIR equations
  • Investigate alternative multiple access techniques beyond CDMA
  • Learn about the impact of interference in wireless communication systems
USEFUL FOR

Communications engineers, students in telecommunications, and researchers focusing on CDMA technology and its applications in wireless communication systems.

Napsterz
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Hi,

I am doing a project on communications engineering. I've done some background reading on CDMA and spread spectrum technologies such as Direct Sequence and Frequency Hopping. My project supervisor has asked me to find out the equation for the signal to interference ratio of CDMA systems not using frequency hopping or direct sequence. Is this possible? I read articles and books describing CDMA technologies and all of them mentioned either frequency hopping or direct sequence. ( I do have the equation of signal to interference ratio for direct sequence and frequency hopping)

Any help will be greatly appreciated

Thanks
 
Engineering news on Phys.org
Napsterz said:
My project supervisor has asked me to find out the equation for the signal to interference ratio of CDMA systems not using frequency hopping or direct sequence. Is this possible?
I don't see how it is possible.
 

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