Riassunti VERIFICATO
Notes on Mobile and Sensor Networks
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- 802.11e: Introduce QoS for voice and video traffic through Hybrid Coordination Function (HCCA) and Enhanced Distributed Channel Access (EDCA), allowing centralized access during contention periods.
- 802.11n: Enhances physical layer with 40 MHz bandwidth, MIMO, and advanced modulation techniques like 64QAM to achieve high data rates while maintaining backward compatibility.
- Bluetooth: Offers personal area networking with low power consumption and short-range capabilities; uses Piconet and Scatternet topologies for device communication, with frequency hopping at the physical layer for robustness.
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