IEEE Transactions on Parallel and Distributed Systems
2161-9883
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Integration of pricing with call admission control to meet QoS requirements in cellular networks
Tập 13 Số 9 - Trang 898-910 - 2002
Call admission control (CAC) plays a significant role in providing the desired quality of service (QoS) in cellular networks. We investigate the role of pricing as an additional dimension of the call admission control process in order to efficiently and effectively control the use of wireless network resources. First, we prove that, for a given wireless network, there exists a new call arrival rat......
#Pricing #Call admission control #Intelligent networks #Land mobile radio cellular systems #Quality of service #Wireless networks #Admission control #Resource management #Aggregates #Communication system traffic control
On load balancing for distributed multiagent computing
Tập 13 Số 8 - Trang 787-801 - 2002
Multiagent computing on a cluster of workstations is widely envisioned to be a powerful paradigm for building useful distributed applications. The agents of the system span across all the machines of a cluster. Just like the case of traditional distributed systems, load balancing becomes an area of concern. With different characteristics between ordinary processes and agents, it is both interestin......
#Load management #Distributed computing #Multiagent systems #Workstations #Software agents #Computer networks #Humans #Measurement #Clustering algorithms #Software systems
Data gathering algorithms in sensor networks using energy metrics
Tập 13 Số 9 - Trang 924-935 - 2002
Gathering sensed information in an energy efficient manner is critical to operating the sensor network for a long period of time. The LEACH protocol presented by Heinzelman et al. (2000) is an elegant solution where clusters are formed to fuse data before transmitting to the base station. In this paper, we present an improved scheme, called PEGASIS (power-efficient gathering in sensor information ......
#Protocols #Base stations #Delay #Clustering algorithms #Energy efficiency #Fuses #Sensor systems #Information systems #Energy capture #Costs
A study of adaptive forward error correction for wireless collaborative computing
Tập 13 Số 9 - Trang 936-947 - 2002
This paper addresses the problem of reliably multicasting Web resources across wireless local area networks (WLANs) in support of collaborative computing applications. An adaptive forward error correction (FEC) protocol is described, which adjusts the level of redundancy in the data stream in response to packet loss conditions. The proposed protocol is intended for use on a proxy server that suppo......
#Forward error correction #Collaboration #Wireless LAN #Multicast protocols #Computer applications #Computer networks #Application software #Redundancy #Network servers #Software architecture
An efficient parallel algorithm for the efficient domination problem on distance-hereditary graphs
Tập 13 Số 9 - Trang 985-993 - 2002
In the literature, there are quite a few sequential and parallel algorithms for solving problems on distance-hereditary graphs. With an n-vertex and m-edge distance-hereditary graph G, we show that the efficient domination problem on G can be solved in O(log/sup 2/ n) time using O(n + m) processors on a CREW PRAM. Moreover, if a binary tree representation of G is given, the problem can be optimall......
#Parallel algorithms #Phase change random access memory #Binary trees #Tree graphs #Bipartite graph #Joining processes #Concurrent computing #Codes #Resource management #Parallel processing
Optional and responsive fine-grain locking in Internet-based collaborative systems
Tập 13 Số 9 - Trang 994-1008 - 2002
Locking is a standard technique used in distributed computing and database systems to ensure data integrity by prohibiting concurrent conflicting updates on shared data objects. Internet-based collaborative systems are a special class of distributed applications which support human-to-human interaction and collaboration over the Internet. In this paper, a novel optional and responsive fine-grain l......
#Internet #Collaboration #Distributed computing #Delay #Database systems #Real time systems #Collaborative work #Sun #Protocols #Usability
Extended dominating-set-based routing in ad hoc wireless networks with unidirectional links
Tập 13 Số 9 - Trang 866-881 - 2002
We extend dominating-set-based routing to networks with unidirectional links. Specifically, an efficient localized algorithm for determining a dominating and absorbant set of vertices (mobile hosts) is given and this set can be easily updated when the network topology changes dynamically. A host /spl nu/ is called a dominating neighbor (absorbant neighbor) of another host u if there is a directed ......
#Intelligent networks #Wireless networks #Routing protocols #Wireless sensor networks #Bandwidth #Network topology #Mobile radio mobility management #Base stations #Distributed computing #Military computing
Communications directed by bound types in Linda: presentation and formal model
Tập 13 Số 8 - Trang 828-843 - 2002
Linda is an elegant parallel and distributed programming model. It is based on a shared associative memory, structured in tuples. We show that this model suffers from the false matching phenomenon. We explain under which conditions this problem occurs, we examine the solutions already proposed to solve it, and we show why they are not sufficient. In this framework, our goal is to propose an extens......
#Application software #Parallel programming #Associative memory #Concurrent computing #Distributed computing #Computer architecture #Parallel processing #Variable speed drives #Power system economics #Power generation economics
Locating mobile agents in a wide distributed environment
Tập 13 Số 8 - Trang 844-864 - 2002
Finding the position of a mobile agent in a wide distributed system still represents an open research issue. The paper proposes a naming scheme and a location protocol of general validity for mobile agents able to effectively meet all the typical requirements of mobile agent environments and, thus, easy to integrate into different platforms. The paper identifies the main characteristics which an a......
#Mobile agents #Protocols #Programming profession #Performance evaluation #Power system modeling #Scalability #Humans
Balancing buffer utilization in meshes using a "restricted area" concept
Tập 13 Số 8 - Trang 814-827 - 2002
Adaptive routing and virtual channels are used to increase routing adaptivity in wormhole-routed two-dimensional meshes. But increasing channel buffer utilization without considering even distribution of the traffic loads tends to cause congestion in the most adaptive routing area. To avoid such traffic congestion, a concept of the restricted area is proposed. The proposed restricted area, defined......
#Routing #Telecommunication traffic #Traffic control #Throughput #Pipelines #Degradation #Delay effects #System recovery #Guidelines