LAN Operating Research Articles

AI and the Future of Network Administrator (LAN) Preventive Maintenance

This paper delves into the pivotal role of AI in predictive maintenance strategies for industrial systems, focused in the filed of LAN operation and maintenance. It will shed some insight on the current methodology and how AI will transform the traditional ways for conducting preventive maintenance tasks.

Sleepy keeper style based Low Power VLSI Architecture of a Viterbi Decoder applying for the Wireless LAN Operation sustainability

Remarkable progress in the field of wireless communication has created a research interest for Viterbi decoder with long duration of battery life, low power dissipation and portabilty in the application. Such a low power Viterbi decoder is required in the area of high speed data transfer application like communication in the convolutional coding for error free inforamtion. This article propose two strategies to enhance the execution of the decoder by circuit level design of the Viterbi decoder utilizing a sleepy keeper method with additional leakage current control transistors, which decreases the leakage power dissipation. Then at the survivor memory unit the variation is done by the usage of modified resister exchange method with search space pruning. The Simulation of the work at the semiconductor level is done with 90 nm TSMC T-SPICE and SPICE netlist is used to create the simscape application of decoder which is applied in the Matlab Communication toolbox. The outcome of the system determines that the proposed sleepy keeper Viterbi Decoder in WLAN application has a reduction of 0.24 % with QPSK and 0.13 % reduction with QAM. Also, the SNR is found to be improved at a rate of 0.5db when compared with code based Viterbi decoder.

U-Slot Dual-Band Planar Inverted-F (Pifa) For 5g In Sub-6 Ghz Spectrum Bands

Salonen P., was the one who first proposed the idea of Double band performance of a planar reversed F antenna utilizing a U-shaped slot with a planned use for Wireless LAN at 2.4/5.2 GHz (IEEE 802.11b/a). The lower and upper frequency bands basically depends on and essentially controlled by the measurement of the external and internal plate separately. This design is normally implemented in places where there is a strong limitation in terms of space and also where the design can operate in multipath environment circumstances, something similar to mobile phones and wireless LAN operation environments. The performance of this and the related minimized designs are normally poor in contrast to the bigger and customary designs. The radiation pattern example and method of operation are not very much characterized, particularly for the upper design band, where the radiation pattern will in general stray from omnidirectional and changes quickly with frequency. In the geometry utilized here, the short is set unevenly as an afterthought confronting the upper finish of the U-shaped opening. In any case, there are various conceivable feed/short setups.

Meandered T-Shaped Monopole Antenna

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> A simple dual band monopole antenna for 2.45/5.2/5.8 GHz LAN operations built on a single layer FR4 substrate is investigated. It is configured as an asymmetrical meandered T-shaped monopole with a long and a short arm. Depending on relative length of the two arms, the short arm can be used to tune the resonant frequency and/or the bandwidth. Bandwidth enhancement is also achieved by tuning the ground plane size. </para>

Error Performance of FH Wireless LANs in DS and Tone Interference

In this paper the bit error probability of the SFH/MFSK system in presence of wideband and tone interference in a fading environment is evaluated. Simultaneous license-free operation of tone-like applications, Frequency Hopping (FH), and Direct Sequence (DS) based LAN clusters is assumed to be the prime interference facing the subject FH wireless LAN (of the IEEE 802.11 standard). The wideband DS interference is considered to have a sinc2() shape Power Spectral Density (PSD) centered at the middle of FH signal band and tone interferers are assumed to be spread over the whole FH band of the intended signal. Assumptions of slow non-selective fading along with slow hopping justify a quasi-static treatment. Results shows that the FH system is more sensitive to tone interference and fading and less sensitive to wideband interference variations. The paper sheds light on the performance of wireless LAN operation in the unlicensed free band where many other LANs may exist.

An approach to modeling performance evaluation on the ethernet with QoS parameters

AbstractThis paper proposes an empirical approach to model the performance of Ethernet with QoS (Quality of Services) parameters. Hence, how to model the performance of Ethernet becomes a critical issue for the LAN implementation and operation. In the QoS approach, however, Ethernet network performance can be dynamically tuned by existing and enhanced operation parameters based on the current information status of the Ethernet LAN system. Consequently, Ethernet performance can be predicted and maintained through using the proposed methodology, and then to promote the system throughput. Copyright © 2001 John Wiley &amp; Sons, Ltd.

Networking CD-ROMs: technical overview and the view from the Manchester Business School

The 1993 post-AGM meeting of the Scottish branch of the Institute of Information Scientists focussed on the principles and practices of networking CD-ROMs. Stephen Duncan presented an evaluative overview of the technical options for networking CD-ROMs, contrasting peer-to-peer and client-server approaches, and also new options for sup porting CD-ROMs directly from LAN operating systems. Then Evelyn Simpson described the practical process of implementing a CD-ROM network for the library at the Manchester Business School (MBS), including non-technical issues such as training and licensing.

Error Handling in the IEEE 802 Token-Passing Bus LAN

We review the IEEE 1983 802.4 Token-Passing Bus LAN protocol design objectives and operation, and discuss the general error handling philosophy which guided the protocol design decisions. We discuss the types of errors which may occur on a bus LAN and their causal mechanisms. We then discuss the specific error handling mechanisms incorporated in the IEEE Token Bus LAN protocol design. Note that we are reporting only some of the results of several years of work by the members of the Token Bus Working Group of the IEEE Project 802, with necessary omissions and apologies for this lack of completeness.