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This chapter provides a description of functional communication transmitter and receiver blocks, including communication channels with additive (AWG) noise and EMI noise, which are limiting factors for the channel capacity or rate. The Shannon–Hartley theorem defines the maximum channel data capacity (rate), stating that the data channel capacity is limited by the signal–noise ratio (SNR) and the channel bandwidth. A higher SNR and larger channel bandwidth lead to higher channel capacity. Additionally, this chapter describes standard multilevel digital modulations, such as the M-PAM, M-PSK, M-QAM, and M-OFSK modulations. At the end of the chapter, an overview of error control coding methods (block and convolution coding) is provided.

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Introduction to Digital Communication Systems

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  • 发表日期：

    2026年

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  • Miroslav Pajovic

摘要

This chapter provides a description of functional communication transmitter and receiver blocks, including communication channels with additive (AWG) noise and EMI noise, which are limiting factors for the channel capacity or rate. The Shannon–Hartley theorem defines the maximum channel data capacity (rate), stating that the data channel capacity is limited by the signal–noise ratio (SNR) and the channel bandwidth. A higher SNR and larger channel bandwidth lead to higher channel capacity. Additionally, this chapter describes standard multilevel digital modulations, such as the M-PAM, M-PSK, M-QAM, and M-OFSK modulations. At the end of the chapter, an overview of error control coding methods (block and convolution coding) is provided.