Title
Comparing Energy and Latency of Asynchronous and Synchronous NoCs for Embedded SoCs
Abstract
Power consumption of on-chip interconnects is a primary concern for many embedded system-on-chip (SoC) applications. In this paper, we compare energy and performance characteristics of asynchronous (clockless) and synchronous network-on-chip implementations, optimized for a number of SoC designs. We adapted the COSI-2.0 framework with ORION 2.0 router and wire models for synchronous network generation. Our own tool, ANetGen, specifies the asynchronous network by determining the topology with simulated-annealing and router locations with force-directed placement. It uses energy and delay models from our 65 nm bundled-data router design. SystemC simulations varied traffic burstiness using the self-similar b-model. Results show that the asynchronous network provided lower median and maximum message latency, especially under bursty traffic, and used far less router energy with a slight overhead for the inter-router wires.
Year
DOI
Venue
2010
10.1109/NOCS.2010.21
Networks-on-Chip
Keywords
Field
DocType
synchronous network-on-chip implementation,asynchronous network,bursty traffic,router location,synchronous nocs,systemc simulation,bundled-data router design,delay model,router energy,synchronous network generation,soc design,topology,noc,soc,network,embedded system,design optimization,eda,asynchronous,routing protocols,cad,embedded systems,switches,network on chip,floorplan,chip,simulated annealing,a priori knowledge,system on a chip,network on a chip
Computer science,Computer network,Real-time computing,Asynchronous communication,System on a chip,Parallel computing,Network on a chip,SystemC,Burstiness,Router,Energy consumption,Routing protocol,Embedded system
Conference
ISBN
Citations 
PageRank 
978-1-4244-7086-0
11
0.58
References 
Authors
29
3
Name
Order
Citations
PageRank
Daniel Gebhardt1110.58
Junbok You2473.79
Kenneth S. Stevens318525.65