Bluetooth scatternets: an enhanced adaptive scheduling scheme Tập 2 - Trang 782-790 vol.2
S. Baatz, M. Frank, C. Kuhl, P. Martini, C. Scholz
The vision of ad-hoc networking with Bluetooth includes the concept of devices participating in multiple "piconets" and thereby forming a "scatternet". However, the details of scatternet support for Bluetooth are not specified yet. This paper presents a scheme for Bluetooth scatternet operation that adapts to varying traffic patterns. Being based on sniff mode, it does not require substantial modi...... hiện toàn bộ
#Bluetooth #Personal area networks #Adaptive scheduling #Master-slave #Spread spectrum communication #Space technology #Personal digital assistants #Mobile handsets #Job shop scheduling #Frequency conversion
Effective location-guided tree construction algorithms for small group multicast in MANET Tập 3 - Trang 1180-1189 vol.3
K. Chen, K. Nahrstedt
Group communication has become increasingly important in mobile ad hoc networks (MANET). Current multicast routing protocols in MANET have a large overhead due to the dynamic network topology. To overcome this problem, there is a recent shift towards stateless multicast in small groups. We introduce a small group multicast scheme, based on packet encapsulation, which uses a novel packet distributi...... hiện toàn bộ
#Multicast algorithms #Mobile ad hoc networks #Bandwidth #Steiner trees #Cost function #Mobile communication #Multicast protocols #Routing protocols #Network topology #Encapsulation
Design of wavelength converting switches for optical burst switching Tập 1 - Trang 362-370 vol.1
J. Ramamirtham, J. Turner
Optical burst switching (OBS) is an experimental network technology that enables the construction of very high capacity routers, using optical data paths and electronic control. In this paper, we study two designs for wavelength converting switches that are suitable for use in optical burst switching systems and evaluate their performance. Both designs use tunable lasers to implement wavelength co...... hiện toàn bộ
#Optical design #Optical wavelength conversion #Optical switches #Optical burst switching #Optical fiber networks #Optical control #Tunable circuits and devices #Gratings #Optical interconnections #Costs
SWAN: service differentiation in stateless wireless ad hoc networks Tập 2 - Trang 457-466 vol.2
Gahng-Seop Ahn, A.T. Campbell, A. Veres, Li-Hsiang Sun
We propose SWAN, a stateless network model which uses distributed control algorithms to deliver service differentiation in mobile wireless ad hoc networks in a simple, scalable and robust manner. We use rate control for UDP and TCP best-effort traffic, and sender-based admission control for UDP real-time traffic. SWAN uses explicit congestion notification (ECN) to dynamically regulate admitted rea...... hiện toàn bộ
#Mobile ad hoc networks #Communication system traffic control #Traffic control #Testing #Distributed control #Robust control #Admission control #Telecommunication traffic #Analytical models #Delay
Real-time model and convergence time of BGP Tập 2 - Trang 893-901 vol.2
D. Obradovic
BGP allows routers to use general preference policies for route selection. This paper studies the impact of these policies on convergence time. We first describe a real-time model of BGP. We then state and prove a general theorem providing an upper bound on convergence time. Finally, we show how to the use the theorem to prove convergence and estimate convergence time in three case studies.
#Convergence #Peer to peer computing #Routing protocols #Upper bound #Shortest path problem #Distributed algorithms #Concatenated codes
Performance analysis of deflection routing in optical burst-switched networks Tập 1 - Trang 66-73 vol.1
Ching-Fang Hsu, Te-Lung Liu, Nen-Fu Huang
This paper concerns itself with the performance of deflection routing in optical burst-switched networks based on just-enough-time (JET) signaling. Generally speaking, buffer requirement is not vital for JET-based optical burst switching (OBS). However, if deflection routing is enabled, optical buffers are necessary to solve the insufficient offset time problem. A variant of priority queuing model...... hiện toàn bộ
#Performance analysis #Routing #Intelligent networks #Optical fiber networks #Optical buffering #Optical switches #Analytical models #Delay lines #Network topology #Telecommunication traffic
Scheduling algorithms for a cache pre-filling content distribution network Tập 2 - Trang 940-949 vol.2
R. Cohen, L. Katzir, D. Raz
Cache pre-filling is emerging as a new concept for increasing the availability of popular Web items in cache servers. According to this concept, Web items are sent by a "push-server" to the proxy cache servers, usually through a broadcast-based or a multicast-based distribution mechanism. One of the most difficult challenges is to design the scheduling algorithm of the push-server. This algorithm ...... hiện toàn bộ
#Scheduling algorithm #Satellite broadcasting #Network servers #Availability #Costs #Web server #Internet #Algorithm design and analysis #Bandwidth #Unicast
The origin of power laws in Internet topologies revisited Tập 2 - Trang 608-617 vol.2
Qian Chen, Hyunseok Chang, R. Govindan, S. Jamin
C. Faloutsos et al. (see Proc. ACM SIGCOMM, 1999) found that the inter autonomous system (AS) topology exhibits a power-law vertex degree distribution. This result was quite unexpected in the networking community and stirred significant interest in exploring the possible causes of this phenomenon. The work of A.-L. Barabasi and R. Albert (see Science, p.509-512, 1999) and its application to networ...... hiện toàn bộ
#Internet #Network topology #Routing #Engineering profession #Web server #Power system modeling #IP networks #Power measurement #Power engineering and energy #Sun
A distributed switch architecture with dynamic load-balancing and parallel input-queued crossbars for terabit switch fabrics Tập 1 - Trang 352-361 vol.1
W. Wang, L. Dong, W. Wolf
Distributed switch architectures allow the partition of a switch fabric into smaller independent switches, which is a key advantage for building high capacity switching systems, such as terabit switches. The performance and the feasibility of a distributed switch architecture depend on two critical components: the design of the queueing structure and the load balancing algorithm. In this paper, we...... hiện toàn bộ
#Switches #Fabrics #Communication switching #Buildings #Switching systems #Algorithm design and analysis #Load management #Partitioning algorithms #Heuristic algorithms #Throughput
TCP-SMO: extending TCP to support medium-scale multicast applications Tập 3 - Trang 1356-1365 vol.3
S. Liang, D. Cheriton
Scalable reliable multicast protocols have been the focus of recent research, tackling the problem of efficient reliable data delivery to an arbitrarily large number of receivers. Yet, the common applications of multicast, such as multi-point file delivery, or video streaming from a media server, typically only involve a moderate number of receivers, such as a thousand or fewer. Moreover, because ...... hiện toàn bộ
#Multicast protocols #Streaming media #Transport protocols #Internet #Web server #Unicast #TCPIP #File servers #Linux #Performance evaluation