A True Full-Duplex IO (TFD-IO) With Background SI Cancellation for High-Density Interfaces

被引：7

作者：

Goyal, Sandeep ^{[1
]}

Parulekar, Ganpat ^{[1
]}

Gupta, Shalabh ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Elect Engn, Mumbai 400076, Maharashtra, India

来源：

IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS | 2022年 / 30卷 / 05期

关键词：

Transceivers; Interference; Correlation; Receivers; Full-duplex system; Interference cancellation; Throughput; Adaptive echo cancellation (EC); chiplets; full-duplex (FD); heterogeneous integration; high-speed serial links; simultaneous bidirectional (SBD); source-synchronous transceiver; BIDIRECTIONAL TRANSCEIVER; CHANNEL LOSS; DIRECT DFE; RECEIVER; EQUALIZER; HYBRID; LINK;

D O I：

10.1109/TVLSI.2022.3146326

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this work, we have proposed and experimentally demonstrated a true full-duplex input-output (TFD-IO) for high-speed high-density interfaces. The proposed TFD-IO can be used as an independent module that converts a unidirectional IO/interconnect to a fully bidirectional IO/interconnect, to ideally double the throughput of the high-speed interface. The TFD-IO uses a correlation-based technique to cancel the self-interference (SI) and echoes adaptively in the background. The signals transmitted from the near-end and the far-end can use independent baud-rates and signaling schemes in a TFD-IO. A proof-of-concept design of the TFD-IO module has been fabricated in a 65-nm CMOS technology, and demonstrated with bidirectional throughputs of up to 12.8 Gb/s.

引用

页码：615 / 624

页数：10