| Refereed Publications
- Yan Zhang, Laurence T. Yang, Jianhua Ma, Jun Zheng,
Mingtuo Zhou and Shaoqiu Xiao, Quantitative Analysis
of Location Management and QoS in Wireless Mobile Newtroks,
in IEEE CS Proceedings of the 21st International Conference
on Advanced Information Networking and Applications (AINA2007),
Canada, May 2007, pp. 573-579.
Abstract - In this paper,
we perform a quantitative analysis of the location management
effect on QoS in the wireless networks. The metrics call
blocking probability and the average number of blocked
calls are introduced to reflect the QoS. For the sake
of general applicability, the performance metrics are
formulated with the relaxed tele-traffic parameters. Namely,
the call inter-arrival time, cell residence time, location
area residence time and location update inter-arrival
time follow a general probability density function. The
formulae are additionally specified in the static and
several dynamic location management mechanisms. Numerical
examples are presented to show the interaction between
the performance metrics and location management schemes.
- Hiroyuki Morohoshi, Runhe Huang, Jianhua Ma and Ying
Huang, A Bridge Linking Ubiquitous Devices and Grid
Services, in IEEE CS Proceedings of the 21st International
Conference on Advanced Information Networking and Applications
(AINA2007), Canada, May 2007, pp. 747-753.
Abstract - Grid computing
has made rapid strides from their first serving the scientific
computing domain to having great impact on the life science
area and their use in the daily activities of users from
the resource constrained ubiquitous devices such as PDA
and mobile phone. To allow ubiquitous devices to use Grid
services, there is a necessity to having a platform or
middleware, a bridge linking the devices to Grid services.
This paper presents such bridge named BtoG (Bridge to
Grid). The design idea and system architecture are described,
a sample application of skin checking, accessing to a
skin-expert service from a mobile phone via the proposed
bridge, is explained, and evaluation and comparisons with
other related platforms are given in the paper.
- Katsuhiro Takata, Masataka Tanaka, Jianhua Ma, Runhe
Huang, Bernady O. Apduhan, and Norio Shiratori, A
Wearable System for Outdoor Running Workout State Recognition
and Course Provision, in the Lecture Note in Computers
Science on Autonomic and Trusted Computing (ATC2007),
Vol. LNCS 4610, Springer, 2007, pp. 385-394.
Abstract - The objective
of this research is to develop a wearable prototype system
to assist people doing outdoor running workout safely
and effectively. One essential research issue is to correctly
recognize a runner's state during a running workout process
by analyzing contextual data obtained from sensors and
GPS positioning device carried on by the runner. The running
workout process is represented as a state transition diagram
using the Space-Oriented Model. The state recognition
is based on the state correlations with the runner's heartbeat
rate and running speed. Our test results show that by
utilizing the runner's state correlation, is more precise
to recognize a runners state as compared to the
state judgment which is only based on detecting whether
a sensed value exceeds some medical threshold value.
- Katsuhiro Takata and Jianhua Ma, Habitual Exercise
State Aware Automatic Running Course Provision,
in Proceedings of the SICE Annual Conference, Takamatsu,
2007, pp. 2739-2742.
Abstract - In this paper
we present a novel approach for automatically generating
running courses. There is no need of worries about overworking
(over-training), as running workout courses are generated
according to real-time detections of users' states. Reasoning
is based on a running situation determination method that
can be applied to various runners. Our designed method
utilizes the users running information based on
habitual exercises to provide current running states.