Tcl and the Tk toolkit
Wireless innovation through software radios
ACM SIGCOMM Computer Communication Review
Run-time reconfigurability in embedded multiprocessors
ACM SIGARCH Computer Architecture News
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
An architecture for software defined cognitive radio
Proceedings of the 6th ACM/IEEE Symposium on Architectures for Networking and Communications Systems
Triggered instructions: a control paradigm for spatially-programmed architectures
Proceedings of the 40th Annual International Symposium on Computer Architecture
CODIPHY: composing on-demand intelligent physical layers
Proceedings of the second workshop on Software radio implementation forum
Throughput-memory footprint trade-off in synthesis of streaming software on embedded multiprocessors
ACM Transactions on Embedded Computing Systems (TECS)
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In order to address the problems faced in the wireless communications domain, picoChip has devised the picoArrayTM. The picoArray is a tiled-processor architecture, containing several hundred heterogeneous processors, connected through a novel, compile-time scheduled interconnect. This architecture does not suffer from many of the problems faced by conventional general purpose parallel processors and provides an alternative to creating an ASIC. The PC102 is the second generation device from picoChip containing 308 processors. The devices are designed to be connected together using a seamless extension of the internal interconnect structure. This enables multi-chip solutions to be easily realised for applications which require additional processing. This paper highlights some of the difficulties encountered when building parallel systems and goes on to show how the features of the picoArray allow deterministic processing to be achieved, how the tool chain allows programming to be performed effectively in a combination of high level assembly language and C, and how systems built around the picoArray are debugged in real-time. By handling a wide variety of types of processing within the picoArray a single design flow can be used to produce complex communications systems. The effectiveness of this approach is demonstrated through the use of the picoArray to build a 802.16 base-station for commercial deployment.