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Sensor Route Management Scheme for Wireless Sensor Network
( Obaidur Rahman ),( Choong Seon Hong ) 한국정보처리학회 2007 한국정보처리학회 학술대회논문집 Vol.14 No.1
A wireless sensor network is the combination of a large number of deployed sensors over an area. Communication between the sensors is the most important factor for a successful sensor network. It is mandatory that long distance and multi-hop communication will occur between sensors. Generally sensors relay the sensed data of a particular territory to the command center via a base station. For the non uniformed deployment of sensors many sensors may deploy in hostile areas surrounded by full of obstacles or in other condition it may be out of the direct communication range of the base station. It seems a critical problem for routing data to and from those sensors to the base station. This paper proposes a route management scheme using a dynamic load balancing approach based on residual energy of each agent sensors.
An Efficient Duty Cycle Based Communication Scheme for Wireless Sensor Network
( Obaidur Rahman ),( Muhammad Mostafa Monowar ),( Cho Jin Woong ),( Lee Jang Yeon ),( Choong Seon Hong ) 한국정보처리학회 2009 한국정보처리학회 학술대회논문집 Vol.16 No.2
Due to the limitation of battery life time, energy is one of the most crucial issues for wireless sensor networks. Thus this paper proposes an energy efficient duty cycle scheme to conserve energy mostly. To handle the large varieties of data (i.e., both low and high traffic load) the proposed duty cycle scheme ensures a fair access period (FAP) and a prioritized access period (PAP). The idea presented in this paper able to reduce the collision probability and energy consumption. Finally simulation outputs have demonstrated the effectiveness of the proposed duty cycle task and showed a noticeable performance in terms of energy usage.
Receiver-driven Channel Rendezvous for Multi-channel Wireless Sensor Networks
Obaidur Rahman,Choong Seon Hong 한국정보과학회 2011 한국정보과학회 학술발표논문집 Vol.38 No.1A
In this work. a new receiver-driven channel rendezvous mechanism is proposed for multi-channel communication in Wireless sensor networks (WSNs). The work is a light-weight scheduled scheme. seems to be incurring less overhead in compare to traditional common control channel based rendezvous mechanisms.
Cluster Based Object Detection in Wireless Sensor Network
Md. Obaidur Rahman,Choong Seon Hong 한국정보과학회 2006 한국정보과학회 학술발표논문집 Vol.33 No.2D
Sensing and coverage are the two relevant tasks for a sensor network. Quality of sensor network totally depends upon the sensing ability of sensors. In a certain monitored region success of detecting or sensing an object with the help of sensor network tells that how efficiently the network coverage perform. Here in this paper we have proposed a clustering algorithm for the deployment of sensors and thus calculated the object detection probability. Actually by this work we can easily identify the present network coverage status and accordingly can take action for its improvement.
An Efficient Rate Control Protocol for Wireless Sensor Network Handling Diverse Traffic
Muhammad Mostafa Monowar,Md. Obaidur Rahman,Choong Seon Hong(홍충선) 한국정보과학회 2007 한국정보과학회 학술발표논문집 Vol.34 No.2A
Wireless Sensor Network typically incorporates diverse applications within the same network. A sensor node may have multiple sensors i.e. light, temperature, seismic etc with different transmission characteristics. Each application has different characteristics and requirements in terms of transmission rates, bandwidth, packet loss and delay demands may be initiated towards the sink. In this paper we propose Heterogeneous Traffic Oriented Rate Control Protocol (HTRCP) which ensures efficient rate control for diverse applications according to the priority specified by the sink. Moreover, HTRCP ensures the node priority based hop by hop dynamic rate adjustment for high link utilization.
Data Predicted Wakeup Based Duty Cycle MAC for Wireless Sensor Networks
( Muhammad Mostafa Monowar ),( Obaidur Rahman ),( Choong Seon Hong ),( Cho Jin Woong Lee ),( Hyun Seok ) 한국정보처리학회 2009 한국정보처리학회 학술대회논문집 Vol.16 No.2
Presuming energy as a crucial resource, several duty cycle based MAC protocol have been proposed for wireless sensor network. However, these protocols have long latency problem for paying more attention on energy efficiency. In this paper, we propose Data Predicted Wakeup Based Duty Cycle MAC (DPW-MAC) for Wireless Sensor Networks for delay sensitive periodic applications in which timely delivery of data is a major concern with the maintenance of duty cycle.