Tools
Sorted by:
Try your query at:
 |
 |
 |
 |
 |
 |
Results 1 - 10
of
1,559
The broadcast storm problem in a mobile ad hoc network
- ACM Wireless Networks
, 2002
"... Broadcasting is a common operation in a network to resolve many issues. In a mobile ad hoc network (MANET) in par-ticular, due to host mobility, such operations are expected to be executed more frequently (such as finding a route to a particular host, paging a particular host, and sending an alarm s ..."
Abstract
-
Cited by 1237 (15 self)
- Add to MetaCart
-tify this problem by showing how serious it is through anal-yses and simulations. We propose several schemes to reduce redundant rebroadcasts and differentiate timing of rebroad-casts to alleviate this problem. Simulation results are pre-sented, which show different levels of improvement over the basic flooding
Cooperative strategies and capacity theorems for relay networks
- IEEE TRANS. INFORM. THEORY
, 2005
"... Coding strategies that exploit node cooperation are developed for relay networks. Two basic schemes are studied: the relays decode-and-forward the source message to the destination, or they compress-and-forward their channel outputs to the destination. The decode-and-forward scheme is a variant of ..."
Abstract
-
Cited by 739 (19 self)
- Add to MetaCart
of multihopping, but in addition to having the relays successively decode the message, the transmitters cooperate and each receiver uses several or all of its past channel output blocks to decode. For the compress-and-forward scheme, the relays take advantage of the statistical dependence between their channel
Broadcast Encryption
, 1994
"... We introduce new theoretical measures for the qualitative and quantitative assessment of encryption schemes designed for broadcast transmissions. The goal is to allow a central broadcast site to broadcast secure transmissions to an arbitrary set of recipients while minimizing key management related ..."
Abstract
-
Cited by 331 (8 self)
- Add to MetaCart
transmissions. We present several schemes that allow a center to broadcast a secret to any subset of privileged users out of a universe of size n so that coalitions of k users not in the privileged set cannot learn the secret. The most interesting scheme requires every user to store O(k log k log n) keys
The Determinants of Credit Spread Changes.
- Journal of Finance
, 2001
"... ABSTRACT Using dealer's quotes and transactions prices on straight industrial bonds, we investigate the determinants of credit spread changes. Variables that should in theory determine credit spread changes have rather limited explanatory power. Further, the residuals from this regression are ..."
Abstract
-
Cited by 422 (2 self)
- Add to MetaCart
are highly crosscorrelated, and principal components analysis implies they are mostly driven by a single common factor. Although we consider several macro-economic and financial variables as candidate proxies, we cannot explain this common systematic component. Our results suggest that monthly credit spread
Dynamic Thermal Management for High-Performance Microprocessors
- In Proceedings of the 7th IEEE Symposium on High-Performance Computer Architecture
, 2001
"... With the increasing clock rate and transistor count of today’s microprocessors, power dissipation is becoming a critical component of system design complexity. Thermal and power-delivery issues are becoming especially critical for high-performance computing systems. In this work, we investigate dyna ..."
Abstract
-
Cited by 333 (5 self)
- Add to MetaCart
design thermal heat sinks to withstand the worst-case scenario. We define and investigate the major components of any dynamic thermal management scheme. Specijcally we explore the tradeoffs between several mechanisms for responding to periods of thermal trauma and we consider the effects of hardware
On the Design of Efficient Video-on-Demand Broadcast Schedules
, 1999
"... In order to address the scalability problems of Video– on–Demand systems, several periodic broadcast schemes have been proposed that partition a video into segments and repetitively broadcast each segment on a separate channel. A new scheme is presented for the bandwidth–efficient periodic broadcast ..."
Abstract
-
Cited by 27 (1 self)
- Add to MetaCart
In order to address the scalability problems of Video– on–Demand systems, several periodic broadcast schemes have been proposed that partition a video into segments and repetitively broadcast each segment on a separate channel. A new scheme is presented for the bandwidth–efficient periodic
Exploiting Client Bandwidth for More Efficient Video Broadcast
, 1998
"... Several periodic broadcasting schemes have been shown to be very effective in addressing the bandwidth limitation in multimedia servers. Since this approach allows many users to share a server stream, its bandwidth requirement is independent of the number of users the system is designed to support. ..."
Abstract
-
Cited by 25 (9 self)
- Add to MetaCart
Several periodic broadcasting schemes have been shown to be very effective in addressing the bandwidth limitation in multimedia servers. Since this approach allows many users to share a server stream, its bandwidth requirement is independent of the number of users the system is designed to support
Wireless Network Information Flow: A Deterministic Approach
, 2009
"... In contrast to wireline networks, not much is known about the flow of information over wireless networks. The main barrier is the complexity of the signal interaction in wireless channels in addition to the noise in the channel. A widely accepted model is the the additive Gaussian channel model, and ..."
Abstract
-
Cited by 296 (42 self)
- Add to MetaCart
, but not the values of the channel gains or the signal-to-noise ratios. We show that existing strategies cannot achieve such a constant-gap approximation for arbitrary networks and propose a new quantizemap-and-forward scheme that does. We also give several extensions of the approximation framework including
Periodic Broadcasting with VBR-Encoded Video
- in Proc. IEEE INFOCOM
, 1999
"... We consider designing near video on demand (VoD) systems that minimize start-up latency while maintaining high image quality. Recently several research teams have developed periodic broadcasting techniques for near VoD that use non-uniform segmentation. These techniques give significant reductions i ..."
Abstract
-
Cited by 28 (1 self)
- Add to MetaCart
We consider designing near video on demand (VoD) systems that minimize start-up latency while maintaining high image quality. Recently several research teams have developed periodic broadcasting techniques for near VoD that use non-uniform segmentation. These techniques give significant reductions
Periodic broadcast protocol for heterogeneous receivers
- In Proceedings of the International Conference on Multimedia Computing and Networking
, 2003
"... Video-on-Demand is undoubtedly a promising technol-ogy for many important applications. Several peri-odic broadcast techniques have been proposed for the cost-effective implementation of such systems. How-ever, the once-and-for-all implementation strategies of these broadcast schemes imply a common ..."
Abstract
-
Cited by 8 (2 self)
- Add to MetaCart
Video-on-Demand is undoubtedly a promising technol-ogy for many important applications. Several peri-odic broadcast techniques have been proposed for the cost-effective implementation of such systems. How-ever, the once-and-for-all implementation strategies of these broadcast schemes imply a common
Results 1 - 10
of
1,559
