Results 1 to 10 of about 392,790 (256)

Optimal Rate Allocation in Cluster-Tree WSNs [PDF]

open access: yesSensors, 2011
In this paper, we propose a solution to the problem of guaranteed time slot allocation in cluster-tree WSNs. Our design uses the so-called Network Utility Maximization (NUM) approach as far as we aim to provide a fair distribution of the available ...
Jose Lopez Vicario   +4 more
doaj   +9 more sources

Joint Source and Channel Rate Allocation over Noisy Channels in a Vehicle Tracking Multimedia Internet of Things System [PDF]

open access: yesSensors, 2018
As an emerging type of Internet of Things (IoT), multimedia IoT (MIoT) has been widely used in the domains of healthcare, smart buildings/homes, transportation and surveillance.
Yixin Mei, Fan Li, Lijun He, Liejun Wang
doaj   +2 more sources

Rate and Power Allocation for Discrete-Rate Link Adaptation

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
Link adaptation, in particular adaptive coded modulation (ACM), is a promising tool for bandwidth-efficient transmission in a fading environment.
Hole Kjell   +6 more
doaj   +6 more sources

Collaborative Rating Allocation [PDF]

open access: yesProceedings of the Twenty-Sixth International Joint Conference on Artificial Intelligence, 2017
This paper studies the collaborative rating allocation problem, in which each user has limited ratings on all items. These users are termed ``energy limited''. Different from existing methods which treat each rating independently, we investigate the geometric properties of a user's rating vector, and design a matrix completion method on the simplex. In
Yali Du 0001, Chang Xu 0002, Dacheng Tao
openaire   +1 more source

An approach to rate allocation in multicast [PDF]

open access: yes42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475), 2004
In multirate multicast different users in the same multicast group can receive services at different rates depending on their own requirements and the congestion level of the network. In this paper we present a general framework for addressing the optimal rate control problem in multirate multicast where the objective is the maximization of a social ...
Tudor Mihai Stoenescu   +2 more
openaire   +1 more source

Robust image transmission performed by SPIHT and turbo-codes [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2008
This work describes the method for providing robustness to errors from a binary symmetric channel for the SPIHT image compression. The source rate and channel rate are jointly optimized by a stream of fixed-size channel packets. Punctured turbo codes are
Lakhdar Moulay Abdelmounaim   +2 more
doaj   +1 more source

Power Allocation and User Grouping for NOMA Downlink Systems

open access: yesApplied Sciences, 2023
Non-orthogonal multiple access (NOMA) technology allows multiple users to use the same time-frequency resource to send signals, which can improve spectral efficiency and throughput.
Jun Li   +4 more
doaj   +1 more source

Distributed Rate Allocation for Inelastic Flows [PDF]

open access: yesIEEE/ACM Transactions on Networking, 2007
A common assumption behind most of the recent research on network rate allocation is that traffic flows are elastic, which means that their utility functions are concave and continuous and that there is no hard limit on the rate allocated to each flow. These critical assumptions lead to the tractability of the analytic models for rate allocation based ...
Hande, Prashanth   +2 more
openaire   +3 more sources

Cross-Layer Optimal Rate Allocation for Heterogeneous Wireless Multicast

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
Heterogeneous multicast is an efficient communication scheme especially for multimedia applications running over multihop networks. The term heterogeneous refers to the phenomenon when multicast receivers in the same session require service at different ...
Amr Mohamed, Hussein Alnuweiri
doaj   +2 more sources

High Performance Short Polar Codes: A Concatenation Scheme Using Spinal Codes as the Outer Code

open access: yesIEEE Access, 2018
An innovative scheme for concatenating the polar codes with the recently proposed spinal codes is presented in this paper. The primary objective is to improve the performance of the polar codes in the finite-length regime.
Xiao Xu   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy