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S. Liu, Z. Lu, A. Jantsch:
"Highway in TDM NoCs";
Talk: International Symposium on Networks on Chip, Vancouver, Canada; 2015-09-28 - 2015-09-30; in: "NoCS", (2015), ISBN: 978-1-4503-3396-2; 8 pages.

TDM (Time Division Multiplexing) is a well-known
technique to provide QoS guarantees in NoCs. However, unused
time slots commonly exist in TDM NoCs. In the paper, we
propose a TDM highway technique which can enhance the slot
utilization of TDM NoCs. A TDM highway is an express TDM
connection composed of special buffer queues, called highway
channels (HWCs). It can enhance the throughput and reduce
data transfer delay of the connection, while keeping the quality
of service (QoS) guarantee on minimum bandwidth and in-order
packet delivery. We have developed a dynamic and repetitive
highway setup policy which has no dependency on particular
TDM NoC techniques and no overhead on traffic flows. As a
result, highways can be efficiently established and utilized in
various TDM NoCs.
According to our experiments, compared to a traditional TDM
NoC, adding one HWC with two buffers to every input port of
routers in an 8

8 mesh can reduce data delay by up to 80%
and increase the maximum throughput by up to 310%. More
improvements can be achieved by adding more HWCs per input
per router, or more buffers per HWC. We also use a set of MPSoC
application benchmarks to evaluate our highway technique. The
experiment results suggest that with highway, we can reduce
application run time up to 51%

http://dx.doi.org/10.1145/2786572.2786577