This chapter aims to provide insights into the modulation and coding schemes (MCS) tailored for-and synchronization issues faced by-the nano-scale electromagnetic communication systems operating in the terahertz (THz) band. The MCS is of paramount importance for the works dealing with rate and power adaptation by the transmitter when channel state information at transmitter (CSIT) of the link is available. Synchronization, on the other hand, refers to frequency, phase, and timing synchronization and is the pre-requisite for many modern signal processing operations, advanced multi-antenna techniques, and advanced modulation techniques. Some prominent examples that require synchronization include decoding at the receiver, multi-input, multi-output (MIMO) systems, beamforming, and orthogonal frequency division multiplexing (OFDM).

Chapter Contents:

• 7.1 Introduction
• 7.2 Modulation in the THz band
• 7.2.1 Pulse-based modulation
• 7.2.2 Carrier-based modulation
• 7.3 Channel coding schemes in the THz band
• 7.4 MCS in the THz band
• 7.5 Synchronization in the THz band
• 7.5.1 Frequency synchronization
• 7.5.2 Phase synchronization
• 7.5.3 Time synchronization
• 7.5.4 Network-level synchronization
• 7.5.4.1 The centralized methods: master–slave-based
• 7.5.4.2 The distributed methods: consensus-based
• 7.5.5 Training-based methods vs. blind methods
• 7.6 Conclusion
• 7.6.1 IEEE standard 802.15.3: executive summary
• References

Inspec keywords: nanocommunication (telecommunication); MIMO communication; OFDM modulation; synchronisation; array signal processing; decoding

Other keywords: MIMO systems; frequency synchronization; phase synchronization; multiantenna techniques; MCS; nanoscale electromagnetic communication systems; receiver decoding; OFDM; CSIT; nanoelectromagnetic communications; multiinput multioutput systems; signal processing; modulation and coding schemes; orthogonal frequency division multiplexing; terahertz band; channel state information at transmitter; beamforming; timing synchronization

Subjects: Signal processing and detection; Acoustic and other telecommunication systems and equipment; Codes