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
Delay constrained energy efficient transmission strategies for wireless devices Tập 3 - Trang 1765-1772 vol.3
P. Nuggehalli, V. Srinivasan, R.R. Rao
In this paper, we address the problem of energy efficient packet scheduling in a
wireless environment. We consider a wireless transmitter which is limited by its
finite battery resource. Our objective is to design a transmission schedule that
maximizes battery lifetime subject to some delay constraints. To achieve this,
we exploit two previously unconnected ideas: (i) channel coding can be used to... hiện toàn bộ
#Delay #Energy efficiency #Batteries #Transmitters #Channel coding #Scheduling algorithm #Cellular networks #Yarn #CMOS technology #Protocols
Optimal on-line estimation of the size of a dynamic multicast group Tập 2 - Trang 1109-1118 vol.2
S. Alouf, E. Altman, P. Nain
We propose an efficient on-line estimation algorithm for determining the size of
a dynamic multicast group. By using diffusion approximation and a Kalman filter,
we derive an estimator that minimizes the mean square of the estimation error.
As opposed to previous studies, where the size of the multicast group is
supposed to be fixed throughout the estimation procedure, we consider a dynamic
estima... hiện toàn bộ
#Stochastic processes #Filtering theory #Mathematical model #Multicast protocols #Feedback #Multicast algorithms #Estimation error #Robustness #Broadcasting #Exponential distribution
Fair scheduling and buffer management in Internet routers Tập 3 - Trang 1141-1150 vol.3
Nan Ni, L.N. Bhuyan
Input buffered switch architecture has become attractive for implementing high
performance routers, and expanding use of the Internet sees an increasing need
for quality of service. It is challenging to provide a scheduling technique that
is both highly efficient and fair in resource allocation. We first introduce an
iterative fair scheduling (iFS) scheme for input buffered switches that supports
... hiện toàn bộ
#Switches #Bandwidth #Web and internet services #Quality of service #Resource management #Throughput #Telecommunication traffic #Traffic control #Channel allocation #Protection
On the throughput achievable by isolated and interconnected input-queueing switches under multiclass traffic Tập 3 - Trang 1605-1614 vol.3
E. Leonardi, M. Mellia, M.A. Marsan, F. Neri
Many studies provide an extended investigation of the maximum throughput
achievable in input-queueing (IQ) or combined-input-and-output-queueing (CIOQ)
packet switches. Some scheduling policies, among which are maximum weight
matching algorithms, were identified as optimal, in the sense that they were
proved to achieve 100% throughput under any admissible single-class traffic
pattern. Most of the ... hiện toàn bộ
#Throughput #Switches #Scheduling algorithm #Packet switching #Traffic control #Fabrics #Telecommunication traffic #Algorithm design and analysis #Pattern matching #Lyapunov method
Network layer search service using oriented multicasting Tập 3 - Trang 1346-1355 vol.3
D. Magoni, J.-J. Pansiot
Many protocols and applications need a discovery mechanism to enable a given
client node to locate one or several specific nodes involved in the same
communication. However, there is no protocol ready to fulfill this service at
the network layer. Every protocol usually implements its own solution. In
particular, multicast protocols often use a search technique called expanding
ring search. This me... hiện toàn bộ
#Multicast protocols #Multicast algorithms #Broadcasting #Web and internet services #Bandwidth #Computer network reliability #Telecommunication network reliability #Data communication #Network servers #Data structures
End-to-end Internet video traffic dynamics: statistical study and analysis Tập 2 - Trang 723-732 vol.2
D. Loguinov, H. Radha
We analyze the dynamics of a seven-month real-time streaming experiment, which
was conducted between a number of unicast dialup clients, connecting to the
Internet through access points in more than 600 major US cities, and a backbone
video server. During the experiment, the clients streamed low-bitrate MPEG-4
video sequences from the server over paths with more than 5,000 distinct
Internet router... hiện toàn bộ
#Internet #Streaming media #Web server #Unicast #Joining processes #Cities and towns #Spine #MPEG 4 Standard #Video sequences #Network servers
Self-verifying CSFQ Tập 1 - Trang 21-30 vol.1
I. Stoica, H. Zhang, S. Shenker
Previously, a class of solutions including core-stateless fair queueing (CSFQ),
rainbow fair queueing, and Diffserv have been proposed to address the
scalability concerns that have plagued stateful architectures such as Intserv
and fair queueing. However, despite some desirable properties, these solutions
still have serious scalability, robustness, and deployment problems. Their
scalability, suffe... hiện toàn bộ
#Scalability #Diffserv networks #Robustness #Aggregates #Traffic control #Protection #Analytical models #Performance analysis #Electronic mail #Internet
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
Predicting Internet network distance with coordinates-based approaches Tập 1 - Trang 170-179 vol.1
T.S.E. Ng, Hui Zhang
We propose using coordinates-based mechanisms in a peer-to-peer architecture to
predict Internet network distance (i.e. round-trip propagation and transmission
delay). We study two mechanisms. The first is a previously proposed scheme,
called the triangulated heuristic, which is based on relative coordinates that
are simply the distances from a host to some special network nodes. We propose
the se... hiện toàn bộ
#IP networks #Peer to peer computing #Economic indicators #Propagation delay #Computer networks #Solid modeling #Performance evaluation #Coordinate measuring machines #Internet #Robustness