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The "cloud paradigm" can provide a wealth of sophisticated emergency communication services that are gamechangers in emergency response, but its current implementation is not suitable to the challenging environments in which these responses often take ...

Content-based publish/subscribe systems provide an efficient communication paradigm that allows decoupling of information producers and consumers across location and time. Distributed overlay-based publish/subscribe systems, while scalable, face many ...

With the vision of Internet of Things gaining popularity at a global level, efficient publish/subscribe middleware for communication within and across datacenters is extremely desirable. In this respect, the very popular Software-defined Networking (SDN)...

Many publish/subscribe systems are based on a tree topology as their message dissemination overlay. However, in trees, even a single broker failure can cause delivery disruption. Hence, a repair mechanism is required, along with message retransmission ...

Realizing a communication middleware in a software-defined network can leverage significant performance gains in terms of latency, throughput and bandwidth efficiency. For example, filtering operations in an event-based middleware can be performed ...

With the increasing popularity of Software-defined networks (SDN), TCAM memory of switches can be directly accessed by a publish/subscribe middleware to perform filtering operations at low latency. This way two important requirements for a publish/...

Software-defined networking (SDN) is a recent development in the area of communication networks with tremendous support by key players building the next generation of computer hardware and software. This development will have significant impact on how ...

A lot of research effort has been invested to support efficient content-based routing. Nevertheless, practitioners often fall back to far less expressive communication paradigms like multicast groups. The benefits of content-based routing in minimizing ...

We have recently witnessed widespread adoption of the publish/subscribe (pub/sub) communication paradigm in the development of large-scale distributed systems. Existing and anticipated use cases demand the pub/sub middleware to support a variety of ...

Content-based publish/subscribe is an appealing paradigm for building large-scale distributed applications. Such applications are often deployed over multiple administrative domains, some of which may not be trusted. Recent attacks in public clouds ...

We propose a routing algorithm for content-based publish/subscribe systems that supports client mobility without incurring in message flooding. Our protocol is based on the simple routing approach and requires brokers to maintain a global vision of the ...

A popular trend in large enterprises today is the adoption of green IT strategies that use resources as efficiently as possible to reduce IT operational costs. With the publish/subscribe middleware playing a vital role in seamlessly integrating ...

Distributed content-based publish/subscribe systems suffer from performance degradation and poor scalability caused by uneven load distributions typical in real-world applications. The reason for this shortcoming is the lack of a load balancing scheme. ...

In large-scale distributed applications, a loosely-coupled event-based style of communication as in publish-subscribe systems eases the integration of autonomous, heterogeneous components. In a publish-subscribe system, content-based routing - where ...

The covering-based routing, which maintains a compact routing table and reduces the costs of communications and matching computations by removing redundant subscriptions, is a typical optimization method in content-based distributed publish/subscribe ...

A new Content-based routing(CBR) approach called ROSE is proposed to realize CBR in very large-scale publish-subscribe systems. ROSE relies on a ring space where subscriptions and events are routed along distinct, albeit intersecting, partitions. An ...

Emerging pervasive information and computational environments require a content-based middleware infrastructure that is scalable, self-managing, and asynchronous. In this paper, we propose associative rendezvous (AR) as a paradigm for content-based ...

The open source Fuego event service and toolkit were developed in the Fuego Core project between 2002 and 2007. The event service addresses the challenges in the mobile computing environment by providing an asynchronous content-based publish/subscribe ...

This article presents a dense logic design for matching multiple regular expressions with a field programmable gate array (FPGA) at 10+ Gbps. It leverages on the design techniques that enforce the shortest critical path on most FPGA architectures while ...

Recently, the publish-subscribe communication model has attracted the attention of developers as a viable alternative to traditional communication schemas, like request/reply, for the flexibility it brings to the architecture of distributed applications,...