OFDM vs Frequency Hoping spread spectrum

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SUMMARY

The discussion clarifies the distinction between Orthogonal Frequency Division Multiplexing (OFDM) and Frequency Hopping Spread Spectrum (FHSS) as used in IEEE 802.16. OFDM is a modulation technique that encodes data onto multiple carrier frequencies, enhancing data transmission efficiency. In contrast, FHSS is a channel switching method that rapidly changes the carrier frequency to minimize interference and enhance security. Both techniques can be employed together in wireless communication systems to optimize performance and reliability.

PREREQUISITES
  • Understanding of modulation techniques, specifically OFDM.
  • Familiarity with spread spectrum technologies, particularly FHSS.
  • Knowledge of IEEE 802.16 standards.
  • Basic concepts of wireless communication systems.
NEXT STEPS
  • Research the implementation of OFDM in IEEE 802.11 standards.
  • Explore the advantages of FHSS in secure communications.
  • Learn about the impact of multipath propagation on OFDM performance.
  • Investigate hybrid systems that utilize both OFDM and FHSS.
USEFUL FOR

Wireless communication engineers, network designers, and anyone involved in the development of broadband technologies will benefit from this discussion.

dervast
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Hi i am not surew i have well understand some issues about modulation schemes. I have read that the 802.16 use ofdm modulation and FHSS technique. Can someone explain what's the difference between OFDM and FHSS and how these two things cooperate?
 
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ODFM is how data is encoded on the carrier.
FHSS is a chanel switching algorithm.
 

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