9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732)最新文献_第8页

The design and application of mobile awareness mechanism in wireless ad hoc networks without GPS 无GPS无线自组网中移动感知机制的设计与应用

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274330

Chun-Hung Chen, Ho-Ting Wu, Kai-Wei Ke

{"title":"The design and application of mobile awareness mechanism in wireless ad hoc networks without GPS","authors":"Chun-Hung Chen, Ho-Ting Wu, Kai-Wei Ke","doi":"10.1109/APCC.2003.1274330","DOIUrl":"https://doi.org/10.1109/APCC.2003.1274330","url":null,"abstract":"A mobile ad hoc network is a wireless multihop network without any existing infrastructure. Thus when one node wants to transmit data to another node, it should depend on other nodes to forward it. In such a networking environment, the movement of highly mobile nodes may frequently result in the link breakdown, thus causing network inefficiency and data loss. In this paper, we develop a simple heuristic mechanism to characterize the instant mobility of network nodes. We assume that all network nodes can move arbitrarily, and none of them is equipped with any positioning device (such as the GPS system). Each mobile node is (at any time) classified as either a low mobility node or a high mobility node. A mobile node estimates its own mobility type by comparing the signal strength of consecutive received messages sent by its low mobility neighboring nodes. It then broadcasts this mobility type information to its neighbors. The mobility estimation algorithm is thus fully distributed and self organized. We then apply the estimated mobility characteristics to the construction of the end-to-end routing path. Two methods of selecting low mobility nodes as the primary intermediate routing nodes are presented. Performance evaluations via simulations have demonstrated the robustness of such a mobile awareness algorithm.","PeriodicalId":277507,"journal":{"name":"9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123460745","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

Radiation characteristics of inclined slot antenna on conducting spherical cavity 斜槽天线在导电球腔上的辐射特性

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274241

C. Phongcharoenpanich, D. Boonrod, M. Krairiksh

引用次数: 1

New call blocking probability (NCBP) in improved adaptive quality of service (AdQoS) for wireless multimedia communications using hierarchical cellular approach 基于分层蜂窝方法的改进自适应服务质量(AdQoS)无线多媒体通信中的新呼叫阻塞概率(NCBP)

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274442

S. Kandasamy, Prihandoko, B. Ali, V. Prakash, R. Kalos

引用次数: 6

Design of an optical fiber link employing QPSK format with SCM scheme 采用单片机方案设计QPSK格式的光纤链路

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274338

Z. Zan, S. Hitam, W. Adnan, M. Yaacob, M. Abdullah

引用次数: 0

Incoercible secure electronic voting scheme based on chaffing and winnowing 基于干扰和筛选的不可强制安全电子投票方案

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274478

N. C. Kiong, A. Samsudin

引用次数: 1

Penang engineering smart-support 槟城工程智能支持

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274340

S. Jamaludin, Lee Chang Wei, J. Chan, Ong Con Nie, A. Shahril

引用次数: 0

Effectiveness of information systems security in IT organizations in Malaysia 马来西亚IT组织的信息系统安全有效性

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274451

W. Al-Salihy, J. Ann, R. Sures

{"title":"Effectiveness of information systems security in IT organizations in Malaysia","authors":"W. Al-Salihy, J. Ann, R. Sures","doi":"10.1109/APCC.2003.1274451","DOIUrl":"https://doi.org/10.1109/APCC.2003.1274451","url":null,"abstract":"As computers become more and more pervasive, information technology (IT) organizations have become so dependent on information systems (IS) for their daily operations and strategic purposes thus intensify the need for IS security. The lack of concern for IS security is evident that organizations are often victimized by computer abuse incidents. Studies on information systems security in Malaysia's IT industry context is very insufficient. This paper will focus on how deterrent actions, preventive actions and organizational actions lead to IS security effectiveness in an IT organization. A survey of Association of Computer and Multimedia Industry of Malaysia (PIKOM) members were conducted. Based on the results of the statistical analysis, a conceptual model of IS security was developed using statistical package for social sciences (SPSS) 8.0. To test the effectiveness of the conceptual model, a case study was done on a typical IT organization to review its IS security status. Finally, findings from this case study were compared with the results from the statistical analysis. The results from the statistical analysis shows that systems environment security control, codes of ethics, security software control and top management support have a positive significant effect on the level of security effectiveness whereas disincentives certainty and organizational maturity was found to have negative significant effect on the level of security effectiveness. Findings from the case study shows that disincentives certainty, systems environment security control, security software control and organizational maturity are key factors contributing to IS security effectiveness while codes of ethics and top management support are insignificant to IS security effectiveness.","PeriodicalId":277507,"journal":{"name":"9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732)","volume":"85 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114040220","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: 10

Modified step-size distribution method for evaluating FWM efficiency in WDM transmission systems 波分复用传输系统中评价波分复用效率的改进步长分布法

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274430

Yan Liu

引用次数: 0

A new microwave discriminator 一种新型微波鉴别器

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274265

T. Chattopadhyay, S. Chattopadhyay

引用次数: 1

Switched real-time Ethernet in industrial applications - deadline partitioning 工业应用中的交换实时以太网。截止时间分区

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732) Pub Date : 2003-09-21 DOI: 10.1109/APCC.2003.1274315

H. Hoang, M. Jonsson

引用次数: 55