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Conference Papers Year : 2014

An OFDMA Based RF Interconnect for Massive Multi-core Processors

Mohamad Hamieh
Myriam Ariaudo
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Frédéric Drillet
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Alexandre Brière
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Lounis Zerioul
Julien Denoulet
Andrea Pinna
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Patrick Garda
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Cédric Duperrier
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Sébastien Quintanel
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Olivier Romain

Abstract

A paradigm shift is apparent in Chip Multiprocessor (CMP) design, as the new performance bottleneck is becoming communication rather than computation. It is widely provisioned that number of cores on a single chip will reach thousands in a decade. Thus, new high rate interconnects such as optical or RF have been proposed by various researchers. However, these interconnect structures fail to provide essential requirements of heterogeneous on-chip traffic; bandwidth reconfigurability and broadcast support with a low complex design. In this paper we investigate the feasibility of a new Orthogonal Frequency Division Multiple Access (OFDMA) RF interconnect for the first time to the best of our knowledge. In addition we provide a novel dynamic bandwidth arbitration and modulation order selection policy, that is designed regarding the bimodal on-chip packets. The proposed approach decreases the average latency up to 3.5 times compared to conventional static approach.

Domains

Electronics
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Dates and versions

hal-01068905 , version 1 (26-09-2014)

Identifiers

Cite

Eren Unlu, Mohamad Hamieh, Christophe Moy, Myriam Ariaudo, Yves Louët, et al.. An OFDMA Based RF Interconnect for Massive Multi-core Processors. NoCS 2014 - Eighth IEEE/ACM International Symposium on Networks-on-Chip, Sep 2014, Ferrara, Italy. pp.182-183, ⟨10.1109/NOCS.2014.7008784⟩. ⟨hal-01068905⟩
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