A scalable micro wireless interconnect structure for CMPs

This paper describes an unconventional way to apply wireless networking in emerging technologies. It makes the case for using a two-tier hybrid wireless/wired architecture to interconnect hundreds to thousands of cores in chip multiprocessors (CMPs), where current interconnect technologies face severe scaling limitations in excessive latency, long wiring, and complex layout. We propose a recursive wireless interconnect structure called the WCube that features a single transmit antenna and multiple receive antennas at each micro wireless router and offers scalable performance in terms of latency and connectivity. We show the feasibility to build miniature on-chip antennas, and simple transmitters and receivers that operate at 100 − 500 GHz sub-terahertz frequency bands. We also devise new two-tier wormhole based routing algorithms that are deadlock free and ensure a minimum-latency route on a 1000core on-chip interconnect network. Our simulations show that our protocol suite can redu...

• Type: Conference
• Year: 2009
• Where: MOBICOM
• Authors: Suk-Bok Lee, Sai-Wang Tam, Ioannis Pefkianakis, Songwu Lu, M. Frank Chang, Chuanxiong Guo, Glenn Reinman, Chunyi Peng, Mishali Naik, Lixia Zhang, Jason Cong
• Keywords: Communications, Current Interconnect Technologies, Interconnect, MOBICOM 2009, Recursive Wireless Interconnect