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CDMA based on-chip wireless networks for multicore chips

The Network-on-Chip (NoC) is an enabling methodology to integrate large numbers of embedded cores on a single die. The existing method of implementing a NoC with planar metal interconnects is deficient due to high latency and significant power consumption arising from multi-hop links used in data exchanges. To address these problems, we propose to replace multi-hop NoC wired interconnects with high-bandwidth single-hop long-range wireless links and to develop cross-layer design methodologies for an on-chip wireless micro-network. Dr. Amlan Ganguly along with his collaborators will develop design methodologies for wide-band on-chip antennas, CDMA based wireless transmission and novel NoC architectures to achieve high speed and energy efficient data transfer between cores in massive multicore chips. At RIT, Dr. Ganguly along with his students Naseef Mansoor, and Manoj Yuvaraj is developing the CDMA based adaptive wireless medium access control (MAC) protocol, which can dynamically adapt to changes in traffic patterns to provide better utilization of the wireless channel bandwidth. The CDMA technique will enable multiple transmitters to use the shared wireless medium simultaneously greatly improving channel utilization compared to the state-of-the-art technique of token-based access. This research is a collaborative effort between RIT, Washington State University and Georgia Institute of Technology.

Sponsor: The team thanks the US National Science Foundation (NSF) for their support of this work.

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