An Inductively Powered Wireless Solid-State Drive System With Merged Error Correction of High-Speed Wireless Data Links and NAND Flash Memories

作者：Kosuge Atsutake^*; Hashiba Junki; Kawajiri Toru; Hasegawa So; Shidei Tsunaaki; Ishikuro Hiroki; Kuroda Tadahiro; Takeuchi Ken

来源：IEEE Journal of Solid-State Circuits, 2016, 51(4): 1041-1050.

DOI：10.1109/JSSC.2015.2512959

• Error correction code (ECC)
• NAND flash memory
• solid-state drive (SSD)
• wireless data communication
• wireless power transmission

A highly reliable wireless solid-state drive (SSD) system for future applications of large volume storage is presented. The wireless interface in the system consists of an inductively coupled power link with fast transmission power control and highspeed data links using transmission line couplers (TLCs). The wireless power link can deliver 1 W from the host to the SSD. The full duplex wireless data interface achieves raw data rate of 1.6 Gb/s. The reliability of the wireless interface is studied though simulation analysis and experiments. The error correction block for the NAND flash memory system can also correct errors in the wireless data links, allowing the requirements for the PHY layer to be relaxed. The error correction code is discussed, including optimization by analyzing the error bits on the wireless data links. The experimental results confirmed strong tolerance to the interference from the power link on the wireless data link, and the water proof property of both the data and power links.

• 出版日期2016-4