This assignment solution covers several key concepts in digital communication systems. It begins by converting binary data into analog waveforms using various modulation techniques like ASK, FSK, PSK, DPSK, and QAM. The solution then computes frequency assignments for 16-level FSK, followed by drawing analog and frequency modulation waveforms. The assignment also includes drawing a 16 QAM constellation diagram and explaining the error detection process using Cyclic Redundancy Check (CRC), along with computing the frame check sequence. Furthermore, it computes the transmitted signal using Direct Sequence Spread Spectrum (DSSS) and differentiates between infrastructure and ad hoc modes in WLAN, including diagrams. Finally, it compares TCP and OSI protocols for wired and wireless LANs and explains the advantages of hexagonal cells in cellular communication.
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