IEEE Transactions on Parallel and Distributed Systems
2161-9883
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Các bài báo tiêu biểu
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...... hiện toàn bộ
#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
Observations on using genetic-algorithms for channel allocation in mobile computing
Tập 13 Số 9 - Trang 948-962 - 2002
This paper highlights the potential of using genetic algorithms to solve cellular resource allocation problems. The objective in this work is to gauge how well a GA-based channel borrower performs when compared to a greedy borrowing heuristic. This is needed to establish how suited GA-like (stochastic search) algorithms are for the solution of optimization problems in mobile computing environments...... hiện toàn bộ
#Channel allocation #Mobile computing #Resource management #Availability #Bandwidth #Radio frequency #Radio spectrum management #Microcell networks #Genetic algorithms #Land mobile radio cellular systems
An efficient synchronization scheme of multimedia streams in wireless and mobile systems
Tập 13 Số 9 - Trang 911-923 - 2002
Recent advances in mobile computing and distributed multimedia systems allow mobile hosts (clients) to access wireless multimedia systems anywhere and at anytime, but not without creating a new set of issues and trade-offs. To the best of our knowledge, there has been very little research in dealing with the synchronization problem in wireless and mobile multimedia systems. In this paper, we propo...... hiện toàn bộ
#Streaming media #Multimedia systems #Mobile computing #Wireless communication #Multimedia computing #Wireless networks #Multimedia communication #Time factors #Base stations #Bandwidth
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...... hiện toàn bộ
#Mobile agents #Protocols #Programming profession #Performance evaluation #Power system modeling #Scalability #Humans
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 ...... hiện toàn bộ
#Intelligent networks #Wireless networks #Routing protocols #Wireless sensor networks #Bandwidth #Network topology #Mobile radio mobility management #Base stations #Distributed computing #Military computing
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...... hiện toàn bộ
#Forward error correction #Collaboration #Wireless LAN #Multicast protocols #Computer applications #Computer networks #Application software #Redundancy #Network servers #Software architecture
Addressing and routing in hexagonal networks with applications for tracking mobile users and connection rerouting in cellular networks
Tập 13 Số 9 - Trang 963-971 - 2002
Nodes in a hexagonal network are placed at the vertices of a regular triangular tessellation, so that each node has up to six neighbors. The network is proposed as an alternative interconnection network to a mesh connected computer (with nodes serving as processors) and is used also to model cellular networks where nodes are the base stations. In this paper, we propose a suitable addressing scheme...... hiện toàn bộ
#Routing #Intelligent networks #Land mobile radio cellular systems #Base stations #Multiprocessor interconnection networks #Broadcasting #Computer networks #Mobile handsets #Costs #Tracking
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...... hiện toàn bộ
#Internet #Collaboration #Distributed computing #Delay #Database systems #Real time systems #Collaborative work #Sun #Protocols #Usability
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 ...... hiện toàn bộ
#Protocols #Base stations #Delay #Clustering algorithms #Energy efficiency #Fuses #Sensor systems #Information systems #Energy capture #Costs
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...... hiện toàn bộ
#Routing #Telecommunication traffic #Traffic control #Throughput #Pipelines #Degradation #Delay effects #System recovery #Guidelines