مشاهده مشخصات مقاله
A Novel Arbitration Scheme for Bandwidth and Jitter Guarantees in Asynchronous NoCs
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Authors |
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Marzieh Lenjani
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Mahmoud Reza Hashemi
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Conference |
چهاردهمین کنفرانس بینالمللی سالانه انجمن کامپیوتر ایران |
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Abstract |
On-chip network interconnections or Network-on-
Chip (NOC) is viewed as a possible solution to global
wiring issues in highly integrated complex systems. In
current NoCs and in order to promote system level
integrity, there is a growing need to provide different
traffic classes, each with a different Quality-of-Service
guarantee. In synchronous NOCs guaranteed service is
provided by reserving time slots. Asynchronous NOC
implementation, on the other hand, eliminates the need
for synchronization when crossing clock domains. In
asynchronous NOCs there is no notation of time and
arbitration. Any delay in arbitration or refusing
requests in arbitration results in the accumulation of
data in switch buffers. In this paper a novel arbitration
scheme for clockless NOCs has been proposed that is
able to service a connection without any halt or jitter
in streaming. Consequently, links with a burst traffic
pattern and guaranteed bandwidth requirement can be
implemented without any large buffers. Simulation
results indicate that the proposed method is able to
reduce switch buffer size, and hence power
consumption in any NoC platform that is providing
guaranteed bandwidth requirements in applications
with burst data characteristics. For instance, in an
MPEG-2 decoder mapped to a 3x2 mesh with 8
guaranteed bandwidth channels in each port, the
proposed arbitration scheme is able to reduce the
buffer size by 25%. The improvement increases to %47
for a JPEG2000 encoder mapped to a 3x3 mesh. |
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قیمت |
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برای اعضای سایت : 100,000 Rial
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برای دانشجویان عضو انجمن : 20,000 Rial
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برای اعضای عادی انجمن : 40,000 Rial
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خرید مقاله
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