Asynchronous transfer mode (ATM) switches based on shared buffering are known to have better performance and buffer utilization than input or output queued switches. Shared buffer switches do not suffer from head of line blocking which is a problem in simple input buffering. Shared buffer switches have previously been studied under uniform and unbalanced traffic patterns. However, due to the co...

Alike interconnection networks for parallel systems, Networks-onchip (NoC) must provide high bandwidth and low latency, but they are further constrained by their on-chip power budget. Consequently, simple network topologies such as the 2D Mesh with shallow buffers and simple routing strategies such as dimensional order routing (DOR) have been widely used in order to achieve this goal. A low num...

Typical transmission control protocol (TCP) based web agents in mobile wireless environment have several deficiencies, such as performance degradation, head-of-line blocking, and unsupported mobility. The Stream Control Transmission Protocol (SCTP) is a new transport protocol, which provides multi-streaming and multi-homing features. SCTP extensions for dynamic address reconfiguration will supp...

We describe an architecture and Medium Access Control (MAC) protocol for WDM networks. Our system is based on a broadcast star architecture and uses an unslotted access protocol and a centralized scheduler to efficiently provide bandwidth-on-demand in WDM networks. To overcome the effects of propagation delays the scheduler measures the delays between the terminals and the hub and takes that de...

In a real-time wireless TDMA environment, every packet generated by applications has a deadline associated with it. If the system cannot allocate enough resources to serve QoS defines the call blocking probability and handoff dropping probability, whereas at packet level, or MAC level, QoS defines the packet dropping probability and delay tolerance. the packet before the deadline, the packet wo...

We address the problem of serving multicast traffic in input-queued packet switches. Head-of-line blocking is a major problem in input-queued switches. It can be avoided in unicast switches by maintaining a queue per output port at each input port. This is not feasible in multicast switches, since the number of destination multicast addresses is exponential in the number of output ports. Our ap...

This paper presents the design and prototype of an intelligent, 3-Dimensional-Queue (3DQ) for highperformance, scalable, input bu ered ATM switches. 3DQ uses pointers and linked lists to organize ATM cells into multiple virtual queues according to priority, destination, and virtual connection. It enforces per virtual connection Quality-of-Service (QoS) and eliminates Head-Of-Line (HOL) blocking...

Death-associated protein kinase (DAPK) is a calmodulin-regulated serine/threonine kinase and possesses apoptotic and tumor-suppressive functions. However, it is unclear whether DAPK elicits apoptosis-independent activity to suppress tumor progression. We show that DAPK inhibits random migration by reducing directional persistence and directed migration by blocking cell polarization. These effec...

Virtual Output Queuing is widely used by fixedlength high-speed electronic switches to overcome head-of-line blocking. This is done by means of matching algorithms. These matching algorithms have typically been cell-based. That is, in every time slot, a new matching set is calculated and the switch fabric is updated to connect matched inputs and outputs. Fabric reconfiguration in an optical swi...