Communication resilience
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Communication resilience
- Many technologies provide resilience to 802.11 communications.
- Spread spectrum spreads the data across a range of frequencies, making it less likely for a narrowband RF signal to cause interference.
- FHSS is inherently more resilient to narrowband interference than OFDM, and OFDM is more resilient to narrowband interference than DSSS.
- Spread spectrum technology uses a range of frequencies, which inherently adds resilience because delay spread and ISI will vary between the different frequencies. Additionally, data encoding provides error recovery methods, helping to reduce the need for retransmission of the data.
Reference:
Coleman, David D.,Westcott, David A. CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-106 Wiley.
Coleman, David D.,Westcott, David A. CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-106 Wiley.
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