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Results 11 - 20
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10,217
Transmission energy minimization in wireless video streaming applications
- in Proc. 35th Asilomar Conf. Signals, Systems, Computers,Pacific
, 2001
"... Transmitter power is a valuable resource in wireless networks. Transmitter power management can have an impact on battery life for mobile users, link level Qo $ and network capacity. We consider elcient use of transmitter enely in a streaming application. We formulate an optimization problem that co ..."
Abstract
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Cited by 10 (2 self)
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that co'esponds to minimizing the transmission ene!ly required to achieve an acceptable level of distortion subject to a delay constraint. By consideing jointly the selection of coding paramters and transmitter power we can formulate an optimal policy. We present results illustrating the advantages
Visual communication via trellis coding and transmission energy allocation
- IEEE Trans. Commun
, 1999
"... Abstract — An unequal error protection approach for the reliable communication of visual information over additive white Gaussian noise channels is proposed and studied. This method relies on a bandwidth-efficient coded modulation scheme that employs selective channel coding and transmission energy ..."
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Cited by 6 (3 self)
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Abstract — An unequal error protection approach for the reliable communication of visual information over additive white Gaussian noise channels is proposed and studied. This method relies on a bandwidth-efficient coded modulation scheme that employs selective channel coding and transmission energy
Minimizing Transmission Energy in Sensor Networks via Trajectory Control
"... Abstract—Energy optimization is a significant component of Wireless Sensor Network (WSN) design. In this paper we consider transmission energy optimization in WSNs where messages are collected by a mobile receiver (collector). The collector is responsible for gathering data messages by choosing the ..."
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Cited by 7 (0 self)
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Abstract—Energy optimization is a significant component of Wireless Sensor Network (WSN) design. In this paper we consider transmission energy optimization in WSNs where messages are collected by a mobile receiver (collector). The collector is responsible for gathering data messages by choosing
Transmission energy allocation with low peak-to-average ratio
- IEEE Commun. Lett
, 1997
"... Abstract — Transmission energy allocation (TEA) to bits according to their sensitivity is known to significantly enhance robustness to channel errors. These advantages are gained at the cost of high peak-to-average ratio (PAR) of the signal energy employed to transmit different bits. We show that, i ..."
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Cited by 2 (1 self)
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Abstract — Transmission energy allocation (TEA) to bits according to their sensitivity is known to significantly enhance robustness to channel errors. These advantages are gained at the cost of high peak-to-average ratio (PAR) of the signal energy employed to transmit different bits. We show that
Vector quantization with transmission energy allocation for time-varying channels
- IEEE Trans. Commun
, 1999
"... Abstract—This work is concerned with the problem of designing robust, vector quantizer (VQ)-based communication systems for operation over time-varying Gaussian channels. Transmission energy allocation to VQ codeword bits, according to their error sensitivities, is a powerful tool for improving robu ..."
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Cited by 6 (1 self)
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Abstract—This work is concerned with the problem of designing robust, vector quantizer (VQ)-based communication systems for operation over time-varying Gaussian channels. Transmission energy allocation to VQ codeword bits, according to their error sensitivities, is a powerful tool for improving
A methodology for assessing video transmission energy consumption and quality
- in: Communications (ICC), 2012 IEEE International Conference on, 2012
"... Abstract—Video traffic has been growing significantly and it is expected to be a large share of the future Internet traffic, within an increasingly mobile environment with scarce resources. In this context, new challenges arise, and energy-efficiency is becoming a key factor for the successful deplo ..."
Abstract
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Cited by 2 (0 self)
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deployment of mobile networks. The development and validation of mechanisms for energy-efficient video transmission require the measurement of the energy consumption needed for video transmission, considering also the end-user Quality of Experience. This issue is of utmost importance, as users will tailor
Minimum Transmission Energy Trajectories for a Linear Pursuit Problem
"... Abstract. In this paper we study a pursuit problem in the context of a wireless sensor network, where the pursuer (i.e., mobile sink) trying to capture a pursuee (i.e., tracked object), moving with constant velocity, is always directly communicating with a sensor node in the very near proximity of t ..."
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of the pursuee. Assuming that the sensor nodes can adjust their transmission power depending on the distance ρ between the pursuer and pursuee according to the usual power law ρ −α, the task is to find the optimal trajectory of the pursuer minimizing the total transmission energy. We approach this classical
Capacity Regions for Wireless Ad Hoc Networks
- IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
, 2003
"... We define and study capacity regions for wireless ad hoc networks with an arbitrary number of nodes and topology. These regions describe the set of achievable rate combinations between all source-destination pairs in the network under various transmission strategies, such as variable-rate transmissi ..."
Abstract
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Cited by 283 (16 self)
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-rate transmission, single-hop or multihop routing, power control, and successive interference cancellation (SIC). Multihop cellular networks and networks with energy constraints are studied as special cases. With slight modifications, the developed formulation can handle node mobility and time-varying flat
Efficient routing in intermittently connected mobile networks: The multiple-copy case
, 2008
"... Intermittently connected mobile networks are wireless networks where most of the time there does not exist a complete path from the source to the destination. There are many real networks that follow this model, for example, wildlife tracking sensor networks, military networks, vehicular ad hoc net ..."
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Cited by 303 (18 self)
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, they waste a lot of energy and suffer from severe contention which can significantly degrade their performance. Furthermore, proposed efforts to reduce the overhead of flooding-based schemes have often been plagued by large delays. With this in mind, we introduce a new family of routing schemes that “spray
Maximum Lifetime Routing In Wireless Sensor Networks
- IEEE/ACM TRANSACTIONS ON NETWORKING
, 2000
"... Routing in power-controlled wireless sensor networks is formulated as an optimization problem with the goal of maximizing the system lifetime. Considering that the information is delivered in the form of packets, we identified the problem as an integer programming problem. It is known that the syste ..."
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Cited by 282 (0 self)
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that the system lifetime can be significantly extended by using a link metric that utilizes the information about the residual energy of the sensor nodes as well as the energy expenditure in transmission of a unit information over the wireless links. In this paper, some of the routing algorithms are proposed
Results 11 - 20
of
10,217
