Jamming resistance in spread spectrum systems

1. What is jamming resistance?
2. Why is it difficult to jam a spread spectrum signal?
3. What are the four types of jamming?
4. What causes network jamming?

What is jamming resistance?

Jamming resistance techniques provide resilience to jamming attacks when the attacker has limited transmission power and therefore cannot prevent communication on all available communication frequencies simultaneously.

Why is it difficult to jam a spread spectrum signal?

Spread spectrum signals are subject to the same jamming equations as any other signals, but the ability of the cooperative receiver to collapse the spectrum gives it a "processing gain" that reduces the effectiveness of the jamming.

What are the four types of jamming?

(4) Types of Jamming: Radiation, Reradiation, and Reflection. (a) Radiation Jamming: Involves systems that radiate electromagnetic energy. Esmaples of such systems are TRAFFIC JAM and QUICKFIX.

What causes network jamming?

Unintentional interference may be caused by the wireless communications among nodes within the same networks or other devices (e.g. microwave and remote controller). On the other hand, intentional interference is usually conducted by an attacker who intends to interrupt or prevent communications in networks.