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:zap: Week 7 - Mind Map :zap: - Coggle Diagram
:zap: Week 7 - Mind Map :zap:
Recalling
Sharing a Channel
Time-domain Frequency
Type of Filter (High Pass, Low Pass, Bandpass)
Radio Spectrum
Channel Sharing (Multiplexing)
Radio Spectrum Management
Modulation
Division Multiplexing (Diff Channels)
Baseband Signal
(SIGNALS WE WANT)
Modulation through
TRIGONOMETRY
Modulation = Shifts Up (Multiply)
Demodulation
Recovering Message
Demodulation = Shifts Down
Mixing Analysis
Filtering
Filter Bandwidth
3dB Cutoff Frequency
Direct Conversion Receiver (Filters after Mixing)
The Internet
Communication Links (Hardware Transmissions)
Packet Switches (Routers & Switches
Who owns the Internet = Nobody
Organizations that control Internet
Internet Hierarchy
ISPs (Global)
Regional ISP
Local ISPs & Customers
Packet Switching
Circuit Switching (Dedicated Circuit)
Packet-switching (Data sent through packs)
No Bandwidth Division
No allocation
Store-and-Forward Transmission (Must Receive all FIRST)
Queuing Delays (output buffer)
Packet Loss (if buffer full = drops other queued packets)
Nodal Delay
Throughput
How Modern Communications Work?
Point-to-Point
Sharing a Channel
Network