We investigated electromagnetic compatibility in energy storage units that re-use battery cables for bidirectional communication between the battery control unit and the individual cells, instead of dedicated communication wires. We derived new transmission limits that ensure compatibility with radiation field strength regulations across geographical locations and assure coexistence in a heterogeneous communications environment.
More info:
G. Prasad, Y. Huo, L. Lampe, V. C. M. Leung
Electromagnetic Compatibility of Power Line Communications in Energy Storage Units
IEEE ISPLC ’18
I co-authored a book chapter in the “most comprehensive text on power line communications,” on the use of power line communications for high-speed multimedia data transfer. It gives an overview of broadband PLC standards, and the technologies that enable gigabit-range throughput over power lines that were not designed to carry high-frequency data signals.
S. Galli, H. Latchman, V. Oksman, G, Prasad, L. W. Yonge
Multimedia PLC Systems
Power Line Communications: Principles, Standards, and Applications From Multimedia to Smart Grid
L. Lampe, A. Tonello, and T. Swart, (Eds.), John Wiley and Sons Ltd, 2016, ch. 8, pp. 475 - 511.
In late 2013, we evaluated if we could transition from (licensed) turbo codes to (unlicensed) LDPC codes for forward error correction in HomePlug power line devices. The error correction performance was impressive, but the additional computational complexity was an issue. To counter this, we used the quasi-cyclic LDPC implementation for simplicity with no compromise in performance. This work was either too early for its time, or not as appealing as we thought it was; we will never know.
More info:
G. Prasad, H. A. Latchman, Y. Lee, W. A. Finamore
A Comparative Performance Study of LDPC and Turbo Codes for Realistic PLC Channels
IEEE ISPLC ’14