Zhengya Zhang and collaborators Venkat Anantharam (Professor, UC
Berkeley EECS), Martin J. Wainwright (Professor, UC Berkeley EECS), and
Borivoje Nikolic (Professor, UC Berkeley EECS), were awarded the Best Paper Award
at the 2010
Symposium on VLSI Circuits.
The paper was presented at the 2009 Symposium.
The paper, entitled “A 47 Gb/s LDPC Decoder with Improved Low Error Rate
Performance,” demonstrates a record LDPC decoding throughput for high-speed
communication with enhanced coding gain down to the bit error rate of 10-14.
The researchers achieved this performance by unique algorithm and
architectural approaches: a post-processing algorithm was created to lower
the error floor by several orders of magnitude and enable the use a short
word length of 4 bits; a grouped parallel architecture optimizes the silicon
area and power efficiencies by aggressively scaling down the on-chip
interconnection overhead. The resulting 65nm CMOS test chip achieved an
energy efficiency of 21 pJ/bit – making it a promising candidate for
low-power, high-performance applications in data storage, high-speed
wireless and optical communications.
Prof. Zhang’s research interest is in energy-efficient and
error-resilient communication and signal processing systems. Recent focus
areas include error-resilient processors, low-power communication
processors, and accelerators for imaging applications.
Posted: June 29, 2010 by
EECS/ECE Communications Coordinator
firstname.lastname@example.org or 734-936-2965