Hadamard Multi-Tone Signaling in Multi-Wire Pulse Amplitude Modulation for Next Generation Wireline Communication

This work presents a multi-tone signaling scheme to mitigate the speed and energy consumption bottlenecks in serial data communication systems. The proposed signaling scheme has been developed based on multi-wire spatial domain encoding combined with time domain Hadamard modulation to extend the communication bandwidth. The performance of the proposed scheme will be analyzed and compared to widely used contemporary signaling schemes. The hybrid Hadamard Multi-Tone (HMT) signaling has been developed to improve the bit packing, lower the symbol rate, reduce the channel loss per sub-carrier or sub-channel, and relax the need for equalization, all enhancing efficiency while accommodating high data throughput.