International Conference on Wireless Technologies for Humanitarian Relief最新文献_第8页

Sensing health: fault detection, isolation, and minimization of on-body sensors 感知健康:故障检测、隔离和最小化身体传感器

International Conference on Wireless Technologies for Humanitarian Relief Pub Date : 2011-12-18 DOI: 10.1145/2185216.2185315

B. Prabhakaran, A. Balasubramanian

{"title":"Sensing health: fault detection, isolation, and minimization of on-body sensors","authors":"B. Prabhakaran, A. Balasubramanian","doi":"10.1145/2185216.2185315","DOIUrl":"https://doi.org/10.1145/2185216.2185315","url":null,"abstract":"Monitoring activities of daily living of senior citizens especially those who live alone as well as those who have certain motion disorders such as Alzheimer's and Parkinson's is increasingly possible and very useful for healthcare purposes. This kind of pervasive and remote monitoring is possible due to availability of \"on-body\" sensors that combine sophisticated inertial sensing, wireless communication and signal processing technologies. The inertial sensors being electro-mechanical in nature are susceptible to errors and faults. In typical wireless sensor systems, such errors and faults are overcome by deploying large number of sensor nodes and taking a majority of the sensed values. However, in the case of on-body sensors, it may be highly inconvenient for an elderly person to wear a large number of sensors. Similar to on-body sensors, tiny electro-magnetic sensors are beginning to be used for tracking tongue movements during speaking. This breakthrough technology can give insights into how we as humans produce sound and these insights can help better train speech impairments. Considering the inconvenience in using such tongue sensors, it will be important to minimize the number of tongue sensors needed for a particular requirement. In this talk, we address the issue of identifying and isolating faulty sensors as well as minimize the number of needed sensors for remote monitoring of daily living activities and tongue movement tracking. We discuss issues such as: (i) faulty node identification when a small number of body sensors is deployed; (ii) identification of such a faulty node based on sensor node groups that share similar sensor signal patterns; and (iii) minimize the number of sensors needed for a particular application.","PeriodicalId":180836,"journal":{"name":"International Conference on Wireless Technologies for Humanitarian Relief","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128342623","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

Distributed framework for tele health monitoring system 分布式远程健康监测系统框架

International Conference on Wireless Technologies for Humanitarian Relief Pub Date : 2011-12-18 DOI: 10.1145/2185216.2185318

B. Sarkar, S. Sanyal, N. Chaki

引用次数: 0

The impact of communication and terrain characteristics on the accuracy of robot formation 通信和地形特征对机器人编队精度的影响

International Conference on Wireless Technologies for Humanitarian Relief Pub Date : 2011-12-18 DOI: 10.1145/2185216.2185342

Aarathi Muppalla, B. S. Manoj

{"title":"The impact of communication and terrain characteristics on the accuracy of robot formation","authors":"Aarathi Muppalla, B. S. Manoj","doi":"10.1145/2185216.2185342","DOIUrl":"https://doi.org/10.1145/2185216.2185342","url":null,"abstract":"Robot formation is one of the significant research directions in humanitarian, tactical, as well as space missions. For a task that requires multiple autonomous robots to work together as a team, coordinating positions each with respect to the other is essential. Therefore, a proper communication mechanism that periodically or aperiodically sends the path information is very important. The communication channel characteristics may impair the accuracy of robot formation. Further, terrain characteristics offer another constraint to have a perfect synchronization of paths between robots of a formation. In this paper, we study path deviations of the follower robot with respect to a leader robot, in an environment that has unpredictable obstacles and communication delays by modeling and simulating the virtual environment. We identified the impact of packet loss and obstacles distribution on the formation accuracy. For accurate formation or reducing the mean path deviation, periodic messaging is preferred in comparison to aperiodic messaging between leader and followers. Our results are useful for designing future robot formations for humanitarian, tactical, and space related applications.","PeriodicalId":180836,"journal":{"name":"International Conference on Wireless Technologies for Humanitarian Relief","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121678797","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

Security and quality provisioning in wireless networks 无线网络中的安全性和质量配置

International Conference on Wireless Technologies for Humanitarian Relief Pub Date : 2011-12-18 DOI: 10.1145/2185216.2185320

P. Mohapatra

引用次数: 0

Amateur radio in emergency communications advanced digital communication network 应急通信中的业余无线电高级数字通信网

International Conference on Wireless Technologies for Humanitarian Relief Pub Date : 2011-12-18 DOI: 10.1145/2185216.2185233

S. Suri

引用次数: 0

Formal specification and verification of vehicular handoff using π-calculus 车辆切换的π微积分形式化规范与验证

International Conference on Wireless Technologies for Humanitarian Relief Pub Date : 2011-12-18 DOI: 10.1145/2185216.2185268

Jayaraj Poroor, B. Jayaraman

{"title":"Formal specification and verification of vehicular handoff using π-calculus","authors":"Jayaraj Poroor, B. Jayaraman","doi":"10.1145/2185216.2185268","DOIUrl":"https://doi.org/10.1145/2185216.2185268","url":null,"abstract":"Vehicular networking is an important emerging area having immense applications, ranging from road-safety to emergency communications in disaster situations. As more applications begin to take advantage of vehicular networks, correctness of the underlying protocols must be subjected to rigorous analysis. The π-calculus is a formal language for specifying mobile systems and has been applied in wide range of settings, from specifying security protocols to modeling biomolecular systems. In this paper, we use π-calculus to construct a formal specification of a cross-layer dual-radio handoff algorithm for vehicular networks. The main challenge in this work was to use the minimal set of highly expressive and powerful constructs of π-calculus to model protocol agents at the right level of abstraction. To give two instances of our approach: (a) the two radios involved in handoff are modelled as concurrent sub-processes of the mobile node process; (b) route to the gateway is modelled as a channel that the access point supplies to both the gateway and the mobile node, both of which are modelled as concurrent processes. We formulate representative properties in a branching-time temporal logic and verify our protocol specification against these properties. Our study shows that π-calculus is a suitable formalism for modeling and verifying vehicular protocols.","PeriodicalId":180836,"journal":{"name":"International Conference on Wireless Technologies for Humanitarian Relief","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129975168","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

An approach for detection of malicious node using fuzzy based trust levels in MANET 一种基于模糊信任等级的无线局域网恶意节点检测方法

International Conference on Wireless Technologies for Humanitarian Relief Pub Date : 2011-12-18 DOI: 10.1145/2185216.2185337

V. Manoj, N. Raghavendiran, M. Aaqib, R. Vijayan

{"title":"An approach for detection of malicious node using fuzzy based trust levels in MANET","authors":"V. Manoj, N. Raghavendiran, M. Aaqib, R. Vijayan","doi":"10.1145/2185216.2185337","DOIUrl":"https://doi.org/10.1145/2185216.2185337","url":null,"abstract":"Wireless Communication is vital during natural calamities, disasters and military operation. In the past few decades, security in the military operations is exposed to vulnerabilities like sniffing the information and modifying the data causing havoc in military camps. Consequently military applications required a secure way to exchange the data and stay away from enemy intrusion. Recent trends in military operations need a portable way of communicating between the units, quality of service and security to be full-fledged. However, in MANET mobile entities are prone to various security attacks due to dynamic changing topology, open medium and inhibited by limited energy, bandwidth and computational power. The paper addresses the security issues by incorporating the concept of Trust and Certification Authority to combat the misbehaving entities. Certificate Authority employs Fuzzy based analyzer to distinguish between trusted and malicious behavior of nodes by distributing the certificates only to the trusted nodes and detecting the misbehaving node. The proposed scheme is more secure, reliable and aids to improve the security in military operations.","PeriodicalId":180836,"journal":{"name":"International Conference on Wireless Technologies for Humanitarian Relief","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132644768","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

Guaranteeing secure transmission in time critical networks through dual sense multiple control channel protocol 通过双感多控制通道协议，保证时间关键网络的安全传输

International Conference on Wireless Technologies for Humanitarian Relief Pub Date : 2011-12-18 DOI: 10.1145/2185216.2185322

Syed Talat Iqbal, T. V. Vaidyanath, R. Gunasekaran

{"title":"Guaranteeing secure transmission in time critical networks through dual sense multiple control channel protocol","authors":"Syed Talat Iqbal, T. V. Vaidyanath, R. Gunasekaran","doi":"10.1145/2185216.2185322","DOIUrl":"https://doi.org/10.1145/2185216.2185322","url":null,"abstract":"The emergence of proper reservation techniques to acquire the channel in Mobile Ad hoc Network is main concern when there is a random, unstipulated and insecure communication. The denial of proper channel causes the foe nodes to cause virtual jamming, thereby preventing the legitimate nodes to communicate especially in the real time scenario where the time factor is very critical. To avoid this, a proper architecture along with a specialized medium access method is necessary. The method employed here is to use a hierarchical-like network forming subworkgroups that define clusters of nodes formed randomly. These clusters propose their own way to allocate the channels for the specific nodes at both the intra-level and inter-level. Also a specialized MAC protocol, Dual Tone Multiple Control Channel [DSMCL] protocol has been formulated based on the busy tone protocol. This protocol also ensures the Quality of Service which reduces the overhead of the upper layers. The mobile nodes follow their own routing protocols for forwarding of packets within the domain and redistribute them for interoperability. While the inter-level channel acquisition is by means of allocation/relocation algorithms, at the intra level, they are carried out using the CTSP (Cell/Technology Selection Problem) pattern. This ensures that a genuine node ready to communicate is not trapped by the malicious node communicating with them forever.","PeriodicalId":180836,"journal":{"name":"International Conference on Wireless Technologies for Humanitarian Relief","volume":"94 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132148524","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

A novel adaptive modulation scheme for WIMAX OFDM system to improve QoS 提出了一种新的WIMAX OFDM系统自适应调制方案，提高了系统的服务质量

International Conference on Wireless Technologies for Humanitarian Relief Pub Date : 2011-12-18 DOI: 10.1145/2185216.2185344

Mrs. M. G. Sumithra, M. Sarumathi

{"title":"A novel adaptive modulation scheme for WIMAX OFDM system to improve QoS","authors":"Mrs. M. G. Sumithra, M. Sarumathi","doi":"10.1145/2185216.2185344","DOIUrl":"https://doi.org/10.1145/2185216.2185344","url":null,"abstract":"WiMAX at 4.9GHz has been identified by the ITU as important in achieving harmonised spectrum for advanced public protection and disaster relief. The band is currently used for this purpose in the US for disaster relief. The most recent WiMAX standard (802.16e) supports broadband applications to mobile terminals and laptops. In particular, WiMAX technology is one of the most energy efficient systems among pre-4G systems and it is capable to provide a Broadband Wireless Access in metropolitan areas. In this paper, adaptive modulation technique is proposed with the aim of improving performances in Non Line-of-Sight communications, typical of urban environments. Through these techniques it is possible to switch the order of the modulation to better match the channel conditions even in the disaster situation, obtaining comforting results in terms of probability of error and throughput. The system has been modeled with a finite state structure in which every state consists in a possible scheme of transmission (i.e. a specific modulation and the switch among different states happens when multiple thresholds on channel attenuation are reached. The adaptation is realized at the physical level of the transmission for a WiMAX OFDMA structure. Additive White Gaussian Noise (AWGN) model is used with Rayleigh fading to resemble the real world scenario. The proposed technique is suitable for different kind of traffic to meet different QoS requirements. The Intent of this paper is to provide better performance by maintaining the block error rate under a limit and it achieves improved throughput even with less average bits per symbol in WiMAX system.","PeriodicalId":180836,"journal":{"name":"International Conference on Wireless Technologies for Humanitarian Relief","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116942409","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

A simultaneous routing and localization algorithm for wireless sensor networks in emergency scenario 紧急情况下无线传感器网络的同步路由和定位算法

International Conference on Wireless Technologies for Humanitarian Relief Pub Date : 2011-12-18 DOI: 10.1145/2185216.2185285

S. Panzieri, F. Pascucci, L. Sciavicco

引用次数: 0