Abstract To fulfill the need of intensive embedded computations, architects have proposed Network-on-Chip based Multi-Processor Systems-on-Chip. Applications exploit the distinct features of the different types of processors in Multi- Processor Systems-on-Chip to optimize the performance metrics: overall execution time, energy consumption, resource usage, etc. Application designers often map statically the tasks on the processors. This static mapping cannot handle many kinds of applications... To fulfill the need of intensive embedded computations, architects have proposed Network-on-Chip based Multi-Processor Systems-on-Chip. Applications exploit the distinct features of the different types of processors in Multi- Processor Systems-on-Chip to optimize the performance metrics: overall execution time, energy consumption, resource usage, etc. Application designers often map statically the tasks on the processors. This static mapping cannot handle many kinds of applications such as those with dynamic workloads and one must use dynamic mapping when several applications run concurrently. As such, there has been an increased need for defining and developing simulation software for carrying out a simulation of the proposed dynamic Mapping heuristics to the NoC-based MPSoC architectures. In this paper, we present DynMapNoCSIM, a JAVA based Dynamic Mapping simulator for NoC-based MPSoC architecture, which builds upon the object-oriented modular design of the NoC-based MPSoC architecture components. Here we demonstrate the use of our proposed simulator by providing a conceptual detail. We have also presented all the features offered. Finally, we have validated the outputs of DynMapNoCSIM with the studies of existing and proposed Dynamic mapping strategies. Read More Read Less

Abstract With increasing the number of cores in the network on chip infrastructure, high latency and power consumption are emerged due to multi-hop communication between two distant cores. As a result, wireless NoC (WiNoC) architectures, have been recently proposed. In the WiNoC, wireless links have higher bandwidth, less delay and higher flexibility rather than those in wire links in the NoC. In this... With increasing the number of cores in the network on chip infrastructure, high latency and power consumption are emerged due to multi-hop communication between two distant cores. As a result, wireless NoC (WiNoC) architectures, have been recently proposed. In the WiNoC, wireless links have higher bandwidth, less delay and higher flexibility rather than those in wire links in the NoC. In this paper, the rate control problem in the WiNoC has investigated using nonlinear optimization theory and can be written as a utility-based optimization problem. Each core is associated with a utility which defined as a function of its rate. The aim of this study is to maximize the aggregate utility of all cores in the WiNoC, subject to capacity constraints of links. Finally, this primal problem is converted to its dual problem and solved based on the gradient projection method. A synchronous iterative algorithm is proposed to control the rate of cores and can be implemented by a centralized controller with low overhead. Read More Read Less

Abstract The application areas of video surveillance are increased in recent days. It is mostly used in static areas such as airport, train stations, shopping malls and road traffic signals. In particular WIMAX networks were expected to support several broadband technologies that provide various services which are video surveillance, audio and data. These services include different classes of Quality of Service (QoS). Scheduling in... The application areas of video surveillance are increased in recent days. It is mostly used in static areas such as airport, train stations, shopping malls and road traffic signals. In particular WIMAX networks were expected to support several broadband technologies that provide various services which are video surveillance, audio and data. These services include different classes of Quality of Service (QoS). Scheduling in WiMAX is one of the most challenging issues since it might distribute its resources to all the users in the network. So, an effective scheduling is very critical in WIMAX networks. More number of scheduling algorithms is available for WiMAX network. In this paper we propose a Priority Queue (PQ), Time expire (TE) scheduling and hybrid between (TE and PQ) queue scheduling algorithms. In this paper we take video, audio and text data for analyzing which one can efficiently support these three scheduling algorithms between (TE and PQ) queue scheduling. Read More Read Less