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Most load balancing techniques implemented in current data centers tend to rely on a mapping from packets to server IP addresses through a hash value calculated from the flow five-tuple. The hash calculation allows extremely fast packet forwarding and provides flow `stickiness', meaning that all packets belonging to the same flow get dispatched to the same server. Unfortunately, such static hashing...
Comparators are a critical element of Analog-to-Digital converters (ADCs) intended to operate in a harsh environments such as the automotive. The influence of temperature on key comparator properties such as the delay must be well understood to maximize their speed. In this paper a Double-Tail latch analysis leads to an analytical expression for the delay to more accurately guide the design over a...
The objective of this study is to analyze delay at signalized intersections using micro simulation approach. Traffic signal delay is one of the major problem people face in urban areas. An effective traffic signal timing and phasing arrangement has to be implemented to optimize the delay for all vehicle moments through the junction. Apart from signal timing arrangement, other factors such as geometry...
A new mathematical model that represents the coexistence between normal and leukemic populations of cells is proposed and analyzed. It is composed by a nonlinear time-delay system describing the dynamics of ordinary stem cells, coupled to a differential-difference system governing the dynamics of mutated cells. A Lyapunov-like technique is developed in order to investigate the stability properties...
A Wireless Body Area Network (WBAN) is a network of wireless sensors and medical equipments located inside or outside the human body for collecting biological signals for various medical and non-medical applications. IEEE 802.15.6 was developed as the standard for WBAN where nodes can access the channel via contention access or contention free access. In this paper, only contention access is considered...
Ultra-Dense Network (UDN) is a promising technology to cope with explosively increasing traffic demands. Delay is an important performance indicator in UDN. In this paper, we analyze the impacts of average sleeping time of BS and association radius on the mean delay in UDN. The explicit relationship between delay and the average sleeping time and association radius is presented. An M/G/1/N processor...
Software-defined networking (SDN) are the rising technology in near future to build programmable networks as a way to simplify the evolution of networks. It is a new networking paradigm with the main aim is to decouple forwarding hardware from control decisions. Several SDN architectures have been recently proposed and evaluated. Performance evaluation of these architectures, to study their scalability,...
The carbon nanotube field-effect transistor (CNFET) is a potential candidate to replace MOSFET due to advantages offered by CNFET such as its superior electrical, thermal, and mechanical properties. When designing circuits made of CNFETs, additional features such as the CNT number, positions and pitch in the array of tubes creating a transistor channel must be considered for performance evaluation...
Combined with the Moon exploration, it builds the simulation scenario about the communication between Deep Station and Moon Detector. It analyzes the problems in the deep communication, such as: the big path loss, large delay and intermittent communication. Based on the analysis, it provides the methods to solve the problems and analyzes the effect for using the appropriate measures which can enhance...
The performance of the Internet is dominated by that of the TCP which in turn depends that of its congestion control algorithm. The primary purpose of the TCP is to take care of the congestion collapse of Internet and also to act as resource optimization mechanism in best effort environment. However, this makes TCP to be unfriendly with real time applications for which UDP is preferred. There is no...
Social connections among network users have been well investigated as an additional opportunity in network design, such as in routing strategies and trusted networking. This paper presents a paradigm shift that explores the design and performance analysis of combining social links jointly with communication links to support message delivery in wireless networks. In a combined social and communication...
Wireless Sensor Networks (WSN) plays a vital role in the modern communication mechanism. These are more vulnerable to attacks due to their basic limitations such as communication distance, memory, processing, throughput and power. In this paper we analyze communication delay and energy consumption of a WSN. We propose a Novel Dynamic Reconfigurable Network Monitoring Node (DRNMN), which controls the...
It is a paradigm shift in internet architecture from receiver centric model to the information centric networking (ICN) model to improve the end-users' latency experience. With exponential increment in number of users and data volume, efficient usage of the nodes (caches) and content forwarding methodology are key issues in an ICN architecture. In ICN intra-domain routers have storage capacity and...
In this paper we have analyzed the effect of gate length variation on the DC parameters of Ino.7Gao.3As/InAs/Ino.7Gao.3As composite channel HEMT using 2D Sentaurus TCAD simulation. Hydrodynamic model is used for the simulation. The simulation model is calibrated with the previously published experimentally. Extensive device simulation of major device performance metrics such as drain induced barrier...
In Wireless Sensor Networks (WSNs), energy conservation is one of the main concerns challenging the cutting-edge standards and protocols. Most existing studies focus on the design of WSN energy efficient algorithms and standards. The standard IEEE 802.15.4 has emerged for WSNs in which the legacy operations are based on the principle that the power-operated battery is ideal and linear. However, the...
An important task in parametric synthesis of telecommunications network such as EPS network is to determine QoS parameters when traffic processed on EPS network nodes. In this conference paper, presented mathematical models for the calculation of QoS parameters such as delay and loss probability taking into account properties of self-similar traffic. This modeling based on model P/P/1 with Pareto...
This paper details preliminary results for a novel statistical analysis, using the delay of an inverter (the basic element of SRAM cells) as an example. The results obtained are statistically meaningful, and should allow for more accurate, faster, and better yield estimates.
The ability to estimate performance metrics such as latency (delay) at an early stage of final implementation in any embedded system is essential for efficient design specially realtime systems. Constructing performance models and evaluation techniques of a given system requires a significant effort. This paper presents a mapping scheme between a Functional Modeling Approach such as FSM, UML etc and...
Lifetimes and latencies of devices in wireless body area networks (WBANs) that monitor the health conditions of patients largely determine their utility under such a setup. It is seen that the medium access control (MAC) used in the WBAN can play a significant role in the network lifetime and the quality of service (QoS) it can provide. IEEE 802.15.6 standard for WBAN includes different MAC options:...
The IEEE 802.11p is an emerging wireless protocol dedicated for Wireless Access in the Vehicular Environment (WAVE). It employs the Enhanced Distributed Channel Access (EDCA) mechanism to access the channel. Its objective is to provide differentiated services to vehicular networks which are delay-sensitive and requires high communication throughput. In this paper, we carry out comprehensive performance...
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