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Quality of service provision assessment for campus network 校园网服务提供质量评估
SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications Pub Date : 2003-12-03 DOI: 10.1109/TIC.2003.1249093
Eduard Babulak
{"title":"Quality of service provision assessment for campus network","authors":"Eduard Babulak","doi":"10.1109/TIC.2003.1249093","DOIUrl":"https://doi.org/10.1109/TIC.2003.1249093","url":null,"abstract":"The paper presents a methodology for assessing the quality of service (QoS) provision for a campus network. The author utilizes the Staffordshire University's network communications infrastructure (SUNCI) as a testing platform and discusses a new approach and QoS provision, by adding a component of measurement to the existing model presented by J.L. Walker (see J. Services Marketing, vol.9, no.1, p.5-14, 1995). The QoS provision is assessed in light of users' perception compared with the network traffic measurements and online monitoring reports. The users' perception of the QoS provision of a telecommunications network infrastructure is critical to the successful business management operation of any organization. The computing environment in modern campus networks is complex, employing multiple heterogeneous hardware and software technologies. In support of highly interactive user applications, QoS provision is essential to the users' ever increasing level of expectations. The paper offers a cost effective approach to assessing the QoS provision within a campus network.","PeriodicalId":177770,"journal":{"name":"SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115299651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
New mobile services based on agent technology 基于代理技术的新型移动业务
SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications Pub Date : 2003-12-03 DOI: 10.1109/TIC.2003.1249110
J. Rykowski
{"title":"New mobile services based on agent technology","authors":"J. Rykowski","doi":"10.1109/TIC.2003.1249110","DOIUrl":"https://doi.org/10.1109/TIC.2003.1249110","url":null,"abstract":"A system based on agent technology is proposed to prepare, develop, and maintain new services for mobile users. The proposed agent server is a software for safely executing program agents working as assistants for mobile phone users. Two new groups of agent services are proposed - personal information services and groupware communication services. A personal agent is created for each user of a mobile phone. This agent resides at a server. The agent is working all the time for its user (owner) even when he/she is disconnected from the mobile network. The behavior (i.e., the code) of an agent is set individually for each user. This code is interpreted rather than compiled, thus careful inspection may be performed at run-time. Access rights granted to agents ensure the agents behave in the proper way. To improve system performance, inspected pieces of code - called plugins - are compiled and are accessible by agents after careful checking of access rights. Thus, the system is both secure and fast.","PeriodicalId":177770,"journal":{"name":"SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126654820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
STRIKE: spectrally efficient fixed wireless network based on dual standards STRIKE:基于双重标准的频谱高效固定无线网络
SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications Pub Date : 2003-12-03 DOI: 10.1109/TIC.2003.1249077
E. M. Diaz, M. Engels, E. Cianca, M. Chenu-Tburnier, A. Hutter, Klaus-Peer Wachsmann, C. Politis, I. Forkel, P. Rosson, D. Noguet
{"title":"STRIKE: spectrally efficient fixed wireless network based on dual standards","authors":"E. M. Diaz, M. Engels, E. Cianca, M. Chenu-Tburnier, A. Hutter, Klaus-Peer Wachsmann, C. Politis, I. Forkel, P. Rosson, D. Noguet","doi":"10.1109/TIC.2003.1249077","DOIUrl":"https://doi.org/10.1109/TIC.2003.1249077","url":null,"abstract":"One of the major challenges of the telecommunication community for the coming years will be to make multimedia services available to everyone, even to those who are in remote places. Broadband fixed wireless access (BFWA) is one of the best positioned radio access technologies to provide broadband access with performances that surpass current 3G mobile data rates and are similar to wired xDSL systems. The paper addresses the solutions which are proposed and demonstrated in the frame of the IST-STRIKE project to enhance spectral efficiency for BFWA and to guarantee end-to-end quality of service (QoS) through a dual mode HiperMAN/HiperLAN system. The first aspect is covered by the use of multi-transmit multi-receive (MTMR) techniques. Indeed, as it is foreseen that the data rates available with the studied standards will be sufficient for the majority of single user needs, the best way to increase the capacity and lower the deployment cost is to multiply the number of simultaneous transmissions. Besides, it is shown that to ensure QoS for high data rate and time constrained services (such as video streaming), interworking is provided at the data link control (DLC) level.","PeriodicalId":177770,"journal":{"name":"SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125353344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
SMART EDU - a new TV video enabled interactive e-learning platform SMART EDU -一个全新的电视视频互动电子学习平台
SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications Pub Date : 2003-12-03 DOI: 10.1109/TIC.2003.1249113
D. Statelov, M. Janković
{"title":"SMART EDU - a new TV video enabled interactive e-learning platform","authors":"D. Statelov, M. Janković","doi":"10.1109/TIC.2003.1249113","DOIUrl":"https://doi.org/10.1109/TIC.2003.1249113","url":null,"abstract":"SMART EDU is a new e-learning platform which enhances CBT (computer based training) and WBT (Web based training) systems, but differing from them by its ability to transmit TV quality video and audio to trainees, thus allowing a significant increase in the attraction of e-learning training to the trainees. SMART EDU provides a complex set of tools and technologies for smooth provisioning of training, meetings and conferencing, incorporating TV quality video as the most natural and appealing media. It integrates synchronous and asynchronous functions like live broadcast, interaction, trainee site screens remote control, files broadcast, Web based tools such as discussion forum, knowledge base, as well as chatting and interactive channels. SMART EDU has a built-in learning management system (LMS) and supports formal as well as informal learning, synchronous and asynchronous activities.","PeriodicalId":177770,"journal":{"name":"SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129715538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Block coded modulation of combined Huffman and run length limited/error control codes 分组编码调制组合霍夫曼和运行长度限制/错误控制码
SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications Pub Date : 2003-12-03 DOI: 10.1109/TIC.2003.1249081
M. Hosany, K. Soyjaudah
{"title":"Block coded modulation of combined Huffman and run length limited/error control codes","authors":"M. Hosany, K. Soyjaudah","doi":"10.1109/TIC.2003.1249081","DOIUrl":"https://doi.org/10.1109/TIC.2003.1249081","url":null,"abstract":"A technique to combine the three processes of a digital communication system, namely source coding, channel coding and modulation, is presented. The proposed system employs Huffman code for source coding, run length limited/error control codes (RLL/ECC) for channel coding and binary frequency shift keying/multi-phase shift keying (BFSK/MPSK) for modulation. It is shown that a reduction of the overall complexity in the combined demodulator/decoder is obtained as compared to its separate counterparts. The error performances are also shown to yield similar results for both the combined and separate block coded modulation (BCM) schemes. The algorithms for the proposed BCM schemes are designed and implemented and their error performances are compared with those employing coded, as well as uncoded, MPSK modulation.","PeriodicalId":177770,"journal":{"name":"SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134029426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On decoding of multidimensional single parity turbo product codes 多维单奇偶涡轮积码的译码
SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications Pub Date : 2003-12-03 DOI: 10.1109/TIC.2003.1249080
T. Janvars, P. Farkaš
{"title":"On decoding of multidimensional single parity turbo product codes","authors":"T. Janvars, P. Farkaš","doi":"10.1109/TIC.2003.1249080","DOIUrl":"https://doi.org/10.1109/TIC.2003.1249080","url":null,"abstract":"The paper deals with an iterative decoding algorithm for two or more dimensional turbo product codes, built using single parity block codes. Decoding is based on soft-input/soft-output (SISO) decoders for decoding component codes. The soft inputs of the decoder include two values, the soft channel value and an a priori value. The soft output of the component's decoder is an extrinsic value, which is an estimation of the log-likelihood ratio (LLR) of binary decisions given by the decoding algorithm. The extrinsic values are used in feedback as a priori information. Simulations show that simple parity block codes used as the component codes gives quite good results, although a very simple decoding algorithm is used.","PeriodicalId":177770,"journal":{"name":"SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129758150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The utilization of the DWDM/CWDM combination in the metro/access networks DWDM/CWDM组合在城域/接入网中的应用
SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications Pub Date : 2003-12-03 DOI: 10.1109/TIC.2003.1249111
R. Róka
{"title":"The utilization of the DWDM/CWDM combination in the metro/access networks","authors":"R. Róka","doi":"10.1109/TIC.2003.1249111","DOIUrl":"https://doi.org/10.1109/TIC.2003.1249111","url":null,"abstract":"We present the basic principles of WDM and then introduce some characteristics of various WDM approaches to the metro/access telecommunication networks. A goal of any WDM system is to multiply an optical fiber's transmission capacity by sending signals simultaneously at multiple wavelengths. Substantial attention is dedicated to presenting a new possibility of utilizing WDM technologies in building metro/access networks. The DWDM (dense WDM) system outstandingly satisfies the requirements of long-haul networks and the CWDM (coarse WDM) system promises all the key characteristics of metro/access network architectures. Therefore, the combination of DWDM/CWDM technologies can offer a great potential for solving challenges of the metro/access network with the prospects of future development.","PeriodicalId":177770,"journal":{"name":"SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115494524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Ubiquitous discovery service platform for mobile applications via a cell phone 无处不在的发现服务平台，通过手机为移动应用程序
SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications Pub Date : 2003-12-03 DOI: 10.1109/TIC.2003.1249075
T. Iso, K. Otsuji, H. Suzuki, M. Katagiri, M. Machida, S. Kurakake, T. Sugimura
{"title":"Ubiquitous discovery service platform for mobile applications via a cell phone","authors":"T. Iso, K. Otsuji, H. Suzuki, M. Katagiri, M. Machida, S. Kurakake, T. Sugimura","doi":"10.1109/TIC.2003.1249075","DOIUrl":"https://doi.org/10.1109/TIC.2003.1249075","url":null,"abstract":"We propose a service infrastructure for richer ubiquitous services that assume access via a cell phone. We call it UDSP (ubiquitous discovery service platform). It can associate a variety of IDs in the real world with a variety of services on the communication network. It can also provide appropriate services for cell phone users. Furthermore, since it supports conventional IDs and service systems, it is easy for service providers to implement service control. In order to realize the above features, the UDSP is composed of four major components: multi-ID capture, UOI (universal object identifier) administration, BIND information (attribution information about objects and services) and basic service portal. We describe these components in the UDSP architecture and show a ubiquitous service system based on the UDSP.","PeriodicalId":177770,"journal":{"name":"SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116029427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A reduced-reference perceptual quality metric for in-service image quality assessment 一种用于在职图像质量评估的减少参考的感知质量度量
SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications Pub Date : 2003-12-03 DOI: 10.1109/TIC.2003.1249092
T. M. Kusuma, Hans-Jürgen Zepernick
{"title":"A reduced-reference perceptual quality metric for in-service image quality assessment","authors":"T. M. Kusuma, Hans-Jürgen Zepernick","doi":"10.1109/TIC.2003.1249092","DOIUrl":"https://doi.org/10.1109/TIC.2003.1249092","url":null,"abstract":"User-oriented image quality assessment has become a key factor in multimedia communications. However, existing image quality metrics such as peak signal-to-noise ratio (PSNR) are inappropriate for in-service quality monitoring, since they require the original image to be available at the receiver. Although PSNR and others are objective metrics, they are not based on human visual perception. In order to overcome these problems, we propose a novel reduced-reference objective hybrid image quality metric (HIQM) that accounts for human visual perception and does not require a reference image at the receiver. This approach is based on a combination of various image artifact measures. The result is a single number, which represents an overall image quality. Experimental results indicate that HIQM outperforms PSNR.","PeriodicalId":177770,"journal":{"name":"SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124971388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 82
Decision support system of ventilation operator based on fuzzy methods applied to interpretation and processing of gas-dynamic images 基于模糊方法的通风操作决策支持系统应用于气动力图像的判读与处理
SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications Pub Date : 2003-12-03 DOI: 10.1109/TIC.2003.1249095
I.V. Lokshina, R. Insinga
{"title":"Decision support system of ventilation operator based on fuzzy methods applied to interpretation and processing of gas-dynamic images","authors":"I.V. Lokshina, R. Insinga","doi":"10.1109/TIC.2003.1249095","DOIUrl":"https://doi.org/10.1109/TIC.2003.1249095","url":null,"abstract":"The paper discusses a decision support system (DSS) based on fuzzy methods that is applied to the interpretation and processing of gas-dynamic images received during the monitoring and control processes of underground coal mine atmospheres. A gas-dynamic image is the plot against time of the output signal of a monitoring sensor. The DSS supports the ventilation operator's decisions under complex and unanticipated gas-dynamic situations on the working face.","PeriodicalId":177770,"journal":{"name":"SympoTIC'03. Joint 1st Workshop on Mobile Future and Symposium on Trends in Communications","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123259951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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