Optimization-Based Wireless Network Architectures: Complexity, Decentralization and Performance Guarantees

The latest results in Deep Neural Networks (DNNs) have greatly improved the accuracy and performance of a variety of intelligent applications. However, running such computation-intensive DNN-based applications on resource-constrained mobile devices definitely leads to long latency and huge energy consumption. The traditional way is performing DNNs in the central cloud, but it requires significant amounts of data to be transferred to the cloud over the wireless network and also results in long latency. To solve this problem, offloading partial DNN computation to edge clouds has been proposed, to realize the collaborative execution between mobile devices and edge clouds. In addition, the mobility of mobile devices is easily to cause the computation offloading failure. In this paper, we develop a mobility-included DNN partition offloading algorithm (MDPO) to adapt to user’s mobility. The objective of MDPO is minimizing the total latency of completing a DNN job when the mobile user is moving. The MDPO algorithm is suitable for both DNNs with chain topology and graphic topology. We evaluate the performance of our proposed MDPO compared to local-only execution and edge-only execution, experiments show that MDPO significantly reduces the total latency and improves the performance of DNN, and MDPO can adjust well to different network conditions.

Download Full-text

Efficiency Analysis of Government Subsidy and Performance Guarantee Policies in Relation to PPP Infrastructure Projects

Mathematical Problems in Engineering ◽

10.1155/2018/6196218 ◽

2018 ◽

Vol 2018 ◽

pp. 1-11 ◽

Cited By ~ 1

Author(s):

Lei Shi ◽

Yujia He ◽

Masamitsu Onishi ◽

Kiyoshi Kobayashi

Keyword(s):

Government Subsidy ◽

Performance Guarantee ◽

Infrastructure Projects ◽

Special Purpose Vehicle ◽

Performance Guarantees ◽

Sustainable Operation ◽

Integrated Policy ◽

The Government ◽

And Performance ◽

Liquidity Shock

Sustainable operation of public-private partnership (PPP) infrastructure projects that are characterized by considerable external benefits is of vital importance. However, a liquidity shock might trigger an inefficient liquidation of a project by the special purpose vehicle (SPV) and the bank, whose objectives are to maximize the profits generated by the project. This study argues that performance guarantee and subsidy policies implemented by the government play a role in encouraging socially efficient decision-making by the SPV and the bank to ensure the continuation of socially valuable projects. The results show that both government subsidy and performance guarantee policies are effective in avoiding the inefficient liquidation of PPP infrastructure projects when the external benefits are large and certain. However, a performance guarantee policy might lead to inefficient continuation when the external benefits of a project are uncertain. Finally, we discuss the possibility that an integrated policy combining performance guarantees and government subsidies improves the efficiency of a PPP infrastructure project.

Download Full-text

Wireless network coding in multi-cell networks: Analysis and performance

10.1109/icspcs.2008.4813676 ◽

2008 ◽

Cited By ~ 6

Author(s):

Jawad Manssour ◽

Afif Osseiran ◽

Slimane Ben Slimane

Keyword(s):

Network Coding ◽

Wireless Network ◽

Wireless Network Coding ◽

Networks Analysis ◽

And Performance ◽

Cell Networks

Download Full-text

A fault-tolerant control scheme within adaptive disturbance observer for hypersonic vehicle

Proceedings of the Institution of Mechanical Engineers Part G Journal of Aerospace Engineering ◽

10.1177/0954410017746702 ◽

2017 ◽

Vol 233 (3) ◽

pp. 1071-1088 ◽

Cited By ~ 3

Author(s):

Jun Zhou ◽

Jing Chang ◽

Zongyi Guo

Keyword(s):

Disturbance Observer ◽

Fault Tolerant ◽

Sliding Mode ◽

Fault Tolerant Control ◽

Lyapunov Theory ◽

Sliding Mode Controller ◽

Performance Guarantees ◽

Uncertain Model ◽

Control Scheme ◽

And Performance

The paper describes the design of a fault-tolerant control scheme for an uncertain model of a hypersonic reentry vehicle subject to actuator faults. In order to improve superior transient performances for state tracking, the proposed method relies on a back-stepping sliding mode controller combined with an adaptive disturbance observer and a reference vector generator. This structure allows for a faster response and reduces the overshoots compared to linear conventional disturbance observers based sliding mode controller. Robust stability and performance guarantees of the overall closed-loop system are obtained using Lyapunov theory. Finally, numerical simulations results illustrate the effectiveness of the proposed technique.

Download Full-text

Energy performance of 5G backhaul wireless network utilizing hybrid centric-distributed architecture

Indonesian Journal of Electrical Engineering and Computer Science ◽

10.11591/ijeecs.v16.i3.pp1343-1348 ◽

2019 ◽

Vol 16 (3) ◽

pp. 1343

Author(s):

Hamza Mohammed Ridha Al-Khafaji ◽

Hasan Shakir Majdi

Keyword(s):

Energy Efficiency ◽

Wireless Network ◽

Network Architecture ◽

Energy Performance ◽

Small Cells ◽

Network Architectures ◽

Distributed Architecture ◽

Wireless Backhaul ◽

Fifth Generation ◽

5G Network

<p>This paper scrutinizes the influence of deployment scenarios on the energy performance of fifth-generation (5G) network at various backhaul wireless frequency bands. An innovative network architecture, the hybrid centric-distributed, is employed and its energy efficiency (EE) model is analyzed. The obtained results confirm that the EE of the 5G network increases with an increasing number of small cells and degrades with an increasing frequency of wireless backhaul and radius of small cells regardless of the network architectures. Moreover, the hybrid centric-distributed architecture augments the EE when compared with the distributed architecture.</p>

Download Full-text