List of Articles Network on chip

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  1 - Efficient Multicast Routing in Reconfigurable Networks-on-Chip
  F. Nasiri   Ahmad  Khademzadeh
  Several routing algorithms have been presented for multicast and unicast traffic in MPSoCs. Multicast protocols in NoCs are used for clock synchronization, cache coherency in distributed shared memory on-chip multiprocessors, replication and barrier synchronization. Uni More

  Several routing algorithms have been presented for multicast and unicast traffic in MPSoCs. Multicast protocols in NoCs are used for clock synchronization, cache coherency in distributed shared memory on-chip multiprocessors, replication and barrier synchronization. Unicast routing algorithms are not useful for multicast. Indeed, when unicast routing algorithms are employed to realize multicast operation, high traffic, congestion and deadlock are imposed to the network. To prevent from these problems, Tree-based and path based techniques have been proposed for multicast in multicomputers (and recently NoCs). In this paper, we present a new multicast routing method to decrease power consumption and multicast message latency based on a reconfigurable NoC architecture. In this line, we benefit from simple switches in our reconfigurable architecture instead of routers; we then divide the network to smaller partitions to make better trees for conducting multicast packets. Our evaluation results reveal that, for both real and synthetic traffic loads, the proposed method outperforms the baseline tree-based routing method in a reconfigurable mesh, and reduces message latency by up to 51% and power consumption by up to 33%. Manuscript profile
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  2 - Presenting a Multi-Criteria QoS-Aware Fault Tolerant Routing Algorithm for Network-On-Chips
  Alireza Mahjoub Fatemeh Vardi Roya Rad
  Network-on-chip is a router-based paradigm that determines the path of packet passing from the source to destination by a routing pattern through simplified protocols of the public data communication network. Sometimes, it is impossible to send packets from source to de More

  Network-on-chip is a router-based paradigm that determines the path of packet passing from the source to destination by a routing pattern through simplified protocols of the public data communication network. Sometimes, it is impossible to send packets from source to destination due to the communication problems caused by network elements in NoC such as routers and faulty links. In most cases, fault-tolerant algorithms select a reliable path using definite criteria. Therefore, in this paper, a reliable path is selected using a multi-criteria decision making technique through an adaptive approach according to the density status received from the adjacent nodes along with the path length so that when a failure occurs, a reliable path with similar QoS features is replaced by rating different paths among network nodes. The weight path selection strategy in NoCs to detect the minimal output port and multi-criteria decision making approach with VIKOR method has improvement over the basic routing algorithm in terms of delay and throughput. The algorithm hardware overhead has a reasonably low cost that maintains scalability for large scale On-Chip networks implementations. Manuscript profile