Telecommun Syst DOI 10.1007/s11235-013-9716-z Autonomous community construction and coordination technology to achieve real-time transmission in multiple emergencies’ situation Fan Wei · M. Emdadul Haque · Xiaodong Lu · Kinji Mori © Springer Science+Business Media New York 2013 Abstract Wireless Sensor Network (WSN) is used in Emer- gency Management System (EMS). If emergency situa- tion happens, real-timely transmitting emergency informa- tion in dynamically changing environment should be as- sured. But this requirement could not be satisfied by con- ventional approaches which are based on static situation and centralized management. In this paper, to satisfy this requirement, autonomous community construction technol- ogy is proposed for single emergency. Emergency informa- tion could be transmitted in community and protected from interference of other information’s transmission. Moreover, autonomous coordination technology is proposed for multi- ple emergencies’ information’s transmission. Via this tech- nology, each emergency could have its individual route to transmit emergency information. Each emergency informa- tion’s transmission will not influence with each other. Eval- uation results are provided to demonstrate the improvement. F. Wei ( ) School of Computer Science, Xi’an Shiyou University, No. 18, Dianzi 2nd Road, Xi’an 710065, P.R. China e-mail: fwei@xsyu.edu.cn M.E. Haque Department of Information and Communication Engineering, University of Rajshahi, Rajshahi 6205, Bangladesh e-mail: haque-ice@ru.ac.bd X. Lu Electronic Navigation Research Institute, 7-42-23 Jindaiji-higashimachi, Chofu, Tokyo 182-0012, Japan e-mail: luxd@enri.go.jp K. Mori Green Computing Systems Research Organization, Waseda University, Waseda Bld. 40-305, 27 Waseda, Shinjuku, Tokyo 162-0042, Japan e-mail: kinji.mori@aoni.waseda.jp Keywords Emergency management system · Wireless sensor network · Autonomous community · Real-time · Emergency information 1 Introduction Via the advances in micro-electro-mechanical systems (MEMS) technology, wireless communications and digital electronics, low-cost, low-power and multi-functional sen- sor with small size could be developed. These sensors could connect with each other in short distance via wireless com- munication. A WSN [1, 2] consists of a large number of sensor nodes which are densely deployed in one region to sense environment or certain objects. Sensing information which is obtained by sensor nodes will be transmitted via the network to some certain terminals. Currently, higher safety of industrial and social system is always being required. Thus, EMS [3] which is based on WSN, is utilized at many places. Due to EMS, preparation of emergency appearance, real-timely emergency response and supporting could be done more efficiently. In EMS, dynamical situations such as system updating and expansion, appearance of event [4] such as emergency situation and failure of system equipments etc, could happen anywhere and anytime. It is impossible to make prediction. Real-timely transmitting emergency information should be the most important issue. Conventional approaches [5, 6] are based on static situations and centralized management strat- egy. If emergency appears, each sensor node should firstly note management center with appearance of emergency. Then they should wait the command of management cen- ter and do the next operation. Therefore, time of responding emergency is not short. And because centralized manage- ment strategy, if management center failed, whole system will fail down. Thus, this requirement could not be satisfied.