International Journal of Autonomous and Adaptive Communications Systems http://www.inderscience.com/browse/index.php?journalID=263&year=2012&vol=5&issue=1 Inderscience Publishers Ltd en-uk International Journal of Autonomous and Adaptive Communications Systems 1754-8632 1754-8640 © 2012 Inderscience Publishers Ltd editor@inderscience.com https://www.inderscience.com/images/files/coverImgs/ijaacs_scoverijaacs.jpg http://www.inderscience.com/browse/index.php?journalID=263&year=2012&vol=5&issue=1 http://www.inderscience.com/link.php?id=44781 The conception and development of pervasive systems involve interdisciplinary team work. The team consists of people with different research background. While such a composition is desirable to solve real-world problems, it brings with it also challenges. To begin with, team members should establish a shared understanding of what should be done. Secondly, separately developed subparts should be brought together to make up a unified, consistent and side-effect free system. In this paper, we discuss the development of the senceive system as a graduate project course work. The project involves computer science, computer engineering and electrical engineering students. Technically, the Senceive system offers a stepwise abstraction of low-level concerns (sensing) from higher-level use of meaningful features. Building an intelligent sensing system: a case study
Waltenegus Dargie; Alexander Schill
International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 3 - 17
The conception and development of pervasive systems involve interdisciplinary team work. The team consists of people with different research background. While such a composition is desirable to solve real-world problems, it brings with it also challenges. To begin with, team members should establish a shared understanding of what should be done. Secondly, separately developed subparts should be brought together to make up a unified, consistent and side-effect free system. In this paper, we discuss the development of the senceive system as a graduate project course work. The project involves computer science, computer engineering and electrical engineering students. Technically, the Senceive system offers a stepwise abstraction of low-level concerns (sensing) from higher-level use of meaningful features.

]]> 10.1504/IJAACS.2012.044781 International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 3 - 17 Waltenegus Dargie; Alexander Schill Chair of Computer Networks, Department of Computer Science, Technical University of Dresden, Dresden, 01062, Germany ' Chair of Computer Networks, Department of Computer Science, Technical University of Dresden, Dresden, 01062, Germany activity recognition project work complex system design wireless sensor networks WSNs network configuration intelligent sensing interdisciplinary teams teamwork graduate projects coursework higher education. 2012-01-07T23:20:50-05:00 5 1 3 17 2012-01-07T23:20:50-05:00 http://www.inderscience.com/link.php?id=44782 This paper introduces a daily-partner robot, that is aware of the user's situation by using gaze and utterance detection. For appropriate anthropomorphic interaction, the robot should talk to the user in proper timing without interrupting her/his task. Our proposed robot 1) estimates the user's context (the target of her/his speech) by detecting his/his gaze the utterance, 2) expresses the need to speak to the user by silent gaze-turns towards the user and the object of joint attention (speech-implying behaviour) and 3) tells the message when the user talks to the robot. Based on preliminary results that show the sufficient human-sensitivity to the speech-implying behaviours of the robot, we evaluate the proposed behavioural model. The results show that the crossmodal awareness is effective for respectful communication that does not disturb the user's ongoing task by silent behaviours that effectively show the robot's intention to speak and draw the user's attention. Anthropomorphic awareness of partner robot to user's situation based on gaze and speech detection
Tomoko Yonezawa; Hirotake Yamazoe; Akira Utsumi; Shinji Abe
International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 18 - 38
This paper introduces a daily-partner robot, that is aware of the user's situation by using gaze and utterance detection. For appropriate anthropomorphic interaction, the robot should talk to the user in proper timing without interrupting her/his task. Our proposed robot 1) estimates the user's context (the target of her/his speech) by detecting his/his gaze the utterance, 2) expresses the need to speak to the user by silent gaze-turns towards the user and the object of joint attention (speech-implying behaviour) and 3) tells the message when the user talks to the robot. Based on preliminary results that show the sufficient human-sensitivity to the speech-implying behaviours of the robot, we evaluate the proposed behavioural model. The results show that the crossmodal awareness is effective for respectful communication that does not disturb the user's ongoing task by silent behaviours that effectively show the robot's intention to speak and draw the user's attention.

]]> 10.1504/IJAACS.2012.044782 International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 18 - 38 Tomoko Yonezawa; Hirotake Yamazoe; Akira Utsumi; Shinji Abe ATR Intelligent Robotics and Communication Laboratories, 2-2-2 Hikaridai, Seika, Soraku, 619-0288 Kyoto, Japan ' ATR Intelligent Robotics and Communication Laboratories, 2-2-2 Hikaridai, Seika, Soraku, 619-0288 Kyoto, Japan ' ATR Intelligent Robotics and Communication Laboratories, 2-2-2 Hikaridai, Seika, Soraku, 619-0288 Kyoto, Japan ' ATR Intelligent Robotics and Communication Laboratories, 2-2-2 Hikaridai, Seika, Soraku, 619-0288 Kyoto, Japan anthropomorphic awareness crossmodal awareness anthropomorphic behaviour stuffed toys toy robots wide area gaze tracking utterance detection gaze detection speech detection joint attention behavioural modelling intention to speak silent communication human-robot interaction. 2012-01-07T23:20:50-05:00 5 1 18 38 2012-01-07T23:20:50-05:00 http://www.inderscience.com/link.php?id=44783 The purpose of this study is to evaluate a dynamic scheduling-based nursing support system for nurses working in acute care. Due to unpredictable occurrences such as random disturbances from patients and the variability of processing times in nursing care, inpatient nursing in practical environments is complex. In this study, we implement a nursing support system in a series of laboratory experiments under simulated conditions. In the laboratory experiments, clinical nurses are asked to perform assigned nursing tasks and simulated patients are used to make the environment realistic. Our results show that, compared to the nurses' performance based on their own procedures (rules of action), the dynamic scheduling method resulted in an average improvement of 71% in terms of earliness or tardiness of care. The proposed dynamic scheduling-based nursing support system is proven to be highly applicable to nursing work in practical nursing care environments. Dynamic scheduling-based inpatient nursing support: applicability evaluation by laboratory experiments
Mingang Cheng; Masako Kanai-Pak; Noriaki Kuwahara; Hiromi Itoh Ozaku; Kiyoshi Kogure; Jun Ota
International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 39 - 57
The purpose of this study is to evaluate a dynamic scheduling-based nursing support system for nurses working in acute care. Due to unpredictable occurrences such as random disturbances from patients and the variability of processing times in nursing care, inpatient nursing in practical environments is complex. In this study, we implement a nursing support system in a series of laboratory experiments under simulated conditions. In the laboratory experiments, clinical nurses are asked to perform assigned nursing tasks and simulated patients are used to make the environment realistic. Our results show that, compared to the nurses' performance based on their own procedures (rules of action), the dynamic scheduling method resulted in an average improvement of 71% in terms of earliness or tardiness of care. The proposed dynamic scheduling-based nursing support system is proven to be highly applicable to nursing work in practical nursing care environments.

]]> 10.1504/IJAACS.2012.044783 International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 39 - 57 Mingang Cheng; Masako Kanai-Pak; Noriaki Kuwahara; Hiromi Itoh Ozaku; Kiyoshi Kogure; Jun Ota Department of Precision Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan ' Department of Nursing, Tokyo Ariake University of Medical and Health Sciences, 2-9-1 Ariake, Koto-ku, Tokyo 135-0065, Japan ' Department of Advanced Fibro-Science, Kyoto Institute of Technology, 1 Hashigami-Cho, Matsugasaki, Sakyo-Ku, Kyoto 606-8585, Japan ' Information Management Office, National Institute of Information and Communications Technology (NICT), 4-2-1 Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan ' Department of Robotics, Kanazawa Institute of Technology 3-1 Yatsukaho, Hakusan, Ishikawa 924-0838, Japan ' Research into Artifacts, Center for Engineering (RACE), The University of Tokyo, Kashiwanoha 5-1-5, Kashiwa, Chiba 277-8568, Japan nursing care dynamic scheduling planning simulated annealing in-patient nursing behaviour analysis replanning skills evaluation healthcare management nursing support systems acute care nurses uncertainty. 2012-01-07T23:20:50-05:00 5 1 39 57 2012-01-07T23:20:50-05:00 http://www.inderscience.com/link.php?id=44784 The development of self-adapting web applications based on composite architectures, such as service-oriented architectures (SOA), is challenged by the lack of support to the specification of explicit adaptation policies for the context aware management of the business, interaction and presentation logics. To address this limitation, we propose a vertical architecture extending SOA with advanced adaptation features. This paper presents the Context Aware Workflow Execution framework (CAWE), which enriches SOA with (1) context-aware workflow management; (2) dialogue management capabilities supporting the adaptation of the interaction with the user and (3) context-dependent user interface generation. This paper also briefly presents a prototype application developed by exploiting the CAWE framework. The context aware workflow execution framework
Liliana Ardissono; Roberto Furnari; Anna Goy; Giovanna Petrone; Marino Segnan
International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 58 - 76
The development of self-adapting web applications based on composite architectures, such as service-oriented architectures (SOA), is challenged by the lack of support to the specification of explicit adaptation policies for the context aware management of the business, interaction and presentation logics. To address this limitation, we propose a vertical architecture extending SOA with advanced adaptation features. This paper presents the Context Aware Workflow Execution framework (CAWE), which enriches SOA with (1) context-aware workflow management; (2) dialogue management capabilities supporting the adaptation of the interaction with the user and (3) context-dependent user interface generation. This paper also briefly presents a prototype application developed by exploiting the CAWE framework.

]]> 10.1504/IJAACS.2012.044784 International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 58 - 76 Liliana Ardissono; Roberto Furnari; Anna Goy; Giovanna Petrone; Marino Segnan Dipartimento di Informatica, Università di Torino, Corso Svizzera 185, 10149 Torino, Italy ' Dipartimento di Informatica, Università di Torino, Corso Svizzera 185, 10149 Torino, Italy ' Dipartimento di Informatica, Università di Torino, Corso Svizzera 185, 10149 Torino, Italy ' Dipartimento di Informatica, Università di Torino, Corso Svizzera 185, 10149 Torino, Italy ' Dipartimento di Informatica, Università di Torino, Corso Svizzera 185, 10149 Torino, Italy context aware adaptation SOA service oriented architecture web applications context-aware workflow execution autonomous systems composite architectures workflow management dialogue management user interaction user interface. 2012-01-07T23:20:50-05:00 5 1 58 76 2012-01-07T23:20:50-05:00 http://www.inderscience.com/link.php?id=44775 A novel spread spectrum (SS) system based on the unconventional self encoding principle has been proposed for highly secured data transmissions. This system inherits the antijamming (AJ) and low probability of interception (LPI) characteristics like any other SS system with the aid of truly random spreading codes, which are generated from the source stream itself. Therefore, the proposed system is unique in that the traditional transmit and receive PN code generators are not needed. In fact, the enhanced transmission security arises not only due to the SS nature of the signal, but also from the true randomness of the unique spreading processes. This paper describes the proposed system and presents the simulation results of the system performance under various kinds of jamming conditions, which is not been so far dealt. The obtained performance curves are compared with existing SS systems like direct sequence and frequency hopped SS. Improving antijamming characteristics of spread spectrum communication systems
K. Jayanthi; P. Dananjayan
International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 77 - 87
A novel spread spectrum (SS) system based on the unconventional self encoding principle has been proposed for highly secured data transmissions. This system inherits the antijamming (AJ) and low probability of interception (LPI) characteristics like any other SS system with the aid of truly random spreading codes, which are generated from the source stream itself. Therefore, the proposed system is unique in that the traditional transmit and receive PN code generators are not needed. In fact, the enhanced transmission security arises not only due to the SS nature of the signal, but also from the true randomness of the unique spreading processes. This paper describes the proposed system and presents the simulation results of the system performance under various kinds of jamming conditions, which is not been so far dealt. The obtained performance curves are compared with existing SS systems like direct sequence and frequency hopped SS.

]]> 10.1504/IJAACS.2012.044775 International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 77 - 87 K. Jayanthi; P. Dananjayan Assistant Professor, Department of Electronics and Communication Engineering Pondicherry Engineering College Pondicherry-14 605014, India. ' Professor, Department of Electronics and Communication Engineering Pondicherry Engineering College Pondicherry-14, India self-encoded spread spectrum frequency hopped spread spectrum differential encoding correlation jamming adaptive communication systems anti-jamming LPI spread spectrum communications self encoding secure data transmission transmission security simulation. 2012-01-07T23:20:50-05:00 5 1 77 87 2012-01-07T23:20:50-05:00 http://www.inderscience.com/link.php?id=44785 In this paper, we propose a comparative study between results generated by a real 802.11 testbed in different outdoor and indoor environments and three usual network simulators (NS2, QualNet and OPNET). The goal of this study is to evaluate the relevance of the low layers recently implemented in these simulators. The motivation of this paper is to provide a guide to researchers to choose and parameterise a simulator according to a selected context. The study shows that the simulation results can be rather close to the experimental results. However, they are very dependent on the tuning of the physical layer parameters and the selected propagation models. Wireless network simulators relevance compared to a real testbed in outdoor and indoor environments
Abderrezak Rachedi; Stéphane Lohier; Sylvain Cherrier; Ismail Salhi
International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 88 - 101
In this paper, we propose a comparative study between results generated by a real 802.11 testbed in different outdoor and indoor environments and three usual network simulators (NS2, QualNet and OPNET). The goal of this study is to evaluate the relevance of the low layers recently implemented in these simulators. The motivation of this paper is to provide a guide to researchers to choose and parameterise a simulator according to a selected context. The study shows that the simulation results can be rather close to the experimental results. However, they are very dependent on the tuning of the physical layer parameters and the selected propagation models.

]]> 10.1504/IJAACS.2012.044785 International Journal of Autonomous and Adaptive Communications Systems, Vol. 5, No. 1 (2012) pp. 88 - 101 Abderrezak Rachedi; Stéphane Lohier; Sylvain Cherrier; Ismail Salhi Computer Science Laboratory (UMR 8049 LIGM), University of Paris-Est Marne-la-Vallée (UPEMLV), Champs sur Marne, France ' Computer Science Laboratory (UMR 8049 LIGM), University of Paris-Est Marne-la-Vallée (UPEMLV), Champs sur Marne, France ' Computer Science Laboratory (UMR 8049 LIGM), University of Paris-Est Marne-la-Vallée (UPEMLV), Champs sur Marne, France ' Computer Science Laboratory (UMR 8049 LIGM), University of Paris-Est Marne-la-Vallée (UPEMLV), Champs sur Marne, France wireless networks 802.11 network simulators testbed propagation models performance modelling simulation tuning physical layer parameters. 2012-01-07T23:20:50-05:00 5 1 88 101 2012-01-07T23:20:50-05:00