‎A module $M$ is lifting if and only if $M$ is amply supplemented and‎ ‎every coclosed submodule of $M$ is a direct summand‎. ‎In this paper‎, ‎we are‎ ‎interested in a generalization of lifting modules by removing the condition‎"‎amply supplemented‎" ‎and just focus on modules such that every non-cosingular‎ ‎submodule of them is a summand‎. ‎We call these modules NS‎. ‎We investigate some gen...

The increasing demand of data, along with the spectrum scarcity, are motivating a urgent shift towards exploiting new bands. This is the main reason behind identifying mmWaves as the key disruptive enabling technology for 5G cellular networks. Indeed, utilizing new bands means facing new challenges; in this context, they are mainly related to the radio propagation, which is shorter in range and...

ns-3 is a recently released next generation simulator intended as a replacement of the popular ns-2. It enables a highly rich set of features and is expected to become the first choice of the scientific community soon. ns-3 is in its evolution phase and work at different fronts is still ongoing. With the recent emergence of broadband wireless networks, simulation support for such networks, espe...

10-Gigabit-capable Passive Optical Network (XG-PON), one of the latest standards of optical access networks, is regarded as one of the key technologies for future Internet access networks. In this paper, we propose and discuss the design and implementation of an XG-PONmodule for the NS-3 network simulator. The aim is to provide a standards-compliant, configurable, and extensible module that can...

In this paper, we present a novel module developed for the simulation of the LTE technology with the ns-3 simulator. It focuses mainly on modeling the E-UTRA part of the system, with a particular attention on the aspects related to the channel, PHY and MAC layers. First we discuss the overall modeling assumptions according to which the module was designed. Subsequently, we describe in detail th...

 In this paper we use the well known network simulator ns-2 in order to study the performance characteristics of various alternatives for the admission control module of a Bandwidth Broker. In particular, we present the modifications that have to be made at the ns-2 architecture in order to simulate these architectures, the metrics such as acceptance rate, fairness towards requests and computa...

We demonstrate a compact optical buffer module, comprising an InP 1×8 phased-array switch and a silica-based delay line circuit. Tunable and uniform buffering of up to 21 ns is obtained with a 3-ns temporal resolution. ©2012 Optical Society of America OCIS codes: (130.3120) Integrated optics devices; (130.4815) Optical switching devices; (060.1810) Buffers, couplers, routers, switches, and mult...

This work is devoted for the design and FPGA implementation of a 16bit Arithmetic module, which uses Vedic Mathematics algorithms. For arithmetic multiplication various Vedic multiplication techniques like Urdhva Tiryakbhyam Nikhilam and Anurupye has been thoroughly analyzed. Also Karatsuba algorithm for multiplication has been discussed. It has been found that Urdhva Tiryakbhyam Sutra is most ...

Use of channel reduction techniques that reduce the number of signals transmitted to a data acquisition (DAQ) module can lead to more efficient use of the DAQ module for PET with numerous readout channels. The purpose of this study was to develop a position decoder circuit (PDC) with a capacity to output the digital address and analog pulse of one interacted channel from numerous PET outputs. A...