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Software Defined Networking and Network Function Virtualisation provide significantly more flexibility and control when provisioning QoS for delay sensitive services. Network delay can have a detrimental impact on VoIP quality and, therefore, minimising delay can help maintain the quality and prevent call dropping. This paper proposes a queuing scheme based on packet delay for prioritising VoIP calls...
In robot teleoperation system, human operates and respond rely on what the video screen displays. However, unavoidable delays, such as network transmission, cause asynchronous communication between human and robot and further result in human operation errors, such as redundant or duplicate operations or even wrong commands. Different from users in large-scale industry, users in daily life may not...
Radio-based localization has the potential to provide centimeter-level position information. In this paper we apply joint probabilistic data association to multipath-assisted simultaneous localization and mapping (SLAM) for this purpose. In multipath-assisted localization, position-related information in multipath components (MPCs) is exploited to increase the accuracy and robustness of indoor tracking...
In the world of Internet of Things (IoT), it is desired that every IoT device is able to communicate with the network all the time. Among various technologies to enable network connectivity, Long Term Evolution (LTE) is by far the most ubiquitous technology to provide coverage for IoT devices. The IoT devices are inherently resource constraint and efficient communication is one of the primary requirements...
Floating-point arithmetic plays major role in computer systems. The single precision floating point arithmetic operations are multiplication, division, addition and subtraction. Among all these multiplication is extensively used and involves composite arithmetic functions. The single precision (32-bit) floating point number split into three parts namely Sign part, and Exponent part and Mantissa part...
The ubiquity of wireless communication and growth in data rate are motivating researchers to explore new frequency spectrums. Wireless communication is highly dependent on the channel characteristics. Only the complete knowledge of channel properties can provide reliable communication. These characteristics are measured using an experimental setup, called channel sounder. The performance of channel...
In this paper, an approach to synthesize compressor trees in High-level Synthesis (HLS) for FPGAs is proposed. Our approach utilizes the bit-level information to improve the compressor tree synthesis. To obtain the bit-level information targeting compressor tree synthesis, a modified bitmask analysis technique based on prior work is proposed. A series of experimental results show that, compared to...
Currently in deep sub-micron technologies such as 16 nm and smaller, requirement of portable devices focus designers' attention on low power design of CMOS circuits and systems, using different low power techniques, trying to decrease dynamic and/or leakage power. One of the widely employed power optimization methods is multi voltage design, used to reduce power by dividing IC into voltage IC domains...
Time mode signal processing (TMSP) is the implementation of analog signal processing functions using the most basic element available, namely, propagation delay. Moreover, a time to digital converter (TDC), an important block of time mode circuits, could be used to convert the time difference between two edges of two signals into a sequence of digital numbers. In this paper, a new time mode SerDes...
The diffusion of rumors is a major concern for web users. Limiting the spread of rumor on social networks has become an important task. One approach is to identify nodes to start a truth campaign such that when users are aware of the truth, they would not believe or propagate the rumor. However, existing works do not take into account the delays of information diffusion or the time point beyond which...
Packet forwarding decisions in communications among vehicles are important due to their high mobility. Further, road topologies are expected to contribute to more occurrences of out-of-range transmissions, which lead to frequent disconnections. The current method to overcome such complex road environments (i.e., in a three-dimensional scenario) is through the introduction of relative angles as a weighting...
Distributed teams are geographically separated and may need to rely on networked communication technologies (e.g., audio or video conference, email) to mediate their interaction. A limitation of these networked communication technologies is that they generate transmission delays that result from network congestion or routing issues. For the purposes of this research we focus on verbal communication...
Wireless Sensor Network (WSN) having a small sensor suffers from limited computational and communication power. These sensors are deployed randomly and sparsely in the network. One of the major problems occurring in such environment at the time of deployment is the formation of holes in the network. The hole is a communication gap, which affects the general performance of the network. An improved...
Online Social Networks (OSNs) are the core of most communications nowadays, leading to possibly sensitive information exchange. Privacy is an important building block of free societies, and thus, for OSNs. OSNs function as group communication systems and can be build in centralised and distributed styles. Privacy can be achieved in distributed systems as all participants contribute to privacy. Peer-to-peer-based...
We analyze the conditions in which offloading computation reduces completion time. We extend the existing literature by deriving an inequality that relates computation offloading system parameters to the bits per instruction ratio of a computational job. This ratio is the inverse of the arithmetic intensity. We then discuss how this inequality can be used to determine the computations that can benefit...
This proposal for demonstration focuses on the realization of the mobile edge cloud for low latency 5G applications by means of a game to engage the audience. Through the use of intelligent application level migration techniques, we demonstrate an agile migration of a tron-like game between multiple potential edge cloud servers, while the game is running, with uninterrupted user interaction. The following...
Nowadays, natural disasters become more and more frequent. In this paper we propose a communication for flood disaster scenario. In our system, nodes can directly demand a specific type of data without knowing its source. Our approach differs from classic Content Centric Network one by allowing to establish a direct communication with groups of nodes. A group of nodes to contact is identified by its...
In these days, a large amount of popular peer-to-peer (also commonly known as P2P) applications, especially in the live streaming domain, are operating in Internet. One of the keys to success of such an application is the mutual cooperation among the participants (i.e., peers) in that application. However, presence of selfish peers (also commonly known as free riders) affects the performance of the...
This paper investigates an unknown input observer design for a large class of linear systems with unknown inputs and commensurate delays. An impulsive finite-time observer is proposed by involving only the past and actual values of the system output. Sufficient conditions are given to guarantee the existence of such an impulsive finite-time observer.
Ship damage control is an important measure to maintain ship vitality when suffering damages. Through the study of a single node command ship damage control disposal process, this article established a model of ship damage control command based on T-Petri; On the basis of analyzing of typical damage by the crew compartment fire scene processing based on T-Petri damage control model, and optimizing...
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