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Energy-Efficient Cooperative Medium Access Control (MAC) Protocol for Wireless Sensor Networks
Mohammad Helal Uddin Ahmed,Choong Seon Hong 한국정보과학회 2011 한국정보과학회 학술발표논문집 Vol.38 No.1D
Recent research activities in cooperative communication focus on achieving energy efficiency and reliability. Relay selection strategy for cooperative communication improves the performance significantly. However, due to imbalance consumption of power, network might die earlier and more than 90% energy remains unused. In this paper, we provide a framework of an energy-efficient medium access control protocol that minimizes these problems and improves energy efficiency.
무선 센서 네트워크를 위한 잔여 에너지 인지형 협력 MAC 프로토콜
Mohammad Helal Uddin Ahmed,홍충선(Choong Seon Hong) 한국정보과학회 2012 정보과학회 컴퓨팅의 실제 논문지 Vol.18 No.3
최근 신뢰성과 에너지 효율성을 높이기 위한 협력 통신에 대한 연구가 활발하게 진행중이다. 그러나 네트워크 성능 향상을 위해서는 전달자를 선택하는 방법 또한 매우 중요한 이슈이다. 많은 논문에서 노드 간의 에너지 소비 불균형으로 네트워크가 작동을 멈췄을 때 많은 양에 에너지가 사용되지 않고 노드 상에 남아 있는 것을 확인할 수 있다. 본 논문에서는 노드 간의 에너지 소모 균형을 유지하면서 최적의 전달자 노드를 선택하는 프레임워크를 제안한다. 또한 CoopMAC보다 70%이상 에너지 효율적인 REC-MAC 프로토콜을 제안한다. 시뮬레이션 결과를 통해 CoopMAC보다 종 대 종 지연이 더 낮은 것도 확인할 수 있다. In this paper, we provide a framework to select an optimal relay that keeps the balance of energy consumption among the nodes. We also propose RECMAC protocol which is more than 70% energy-efficient over CoopMAC. Simulation results also show that end-2- end delay of REC-MAC is better than CoopMAC.
Smart Grid Cooperative Communication with Smart Relay
Mohammad Helal Uddin Ahmed,Md. Golam Rabiul Alam,Rossi Kamal,홍충선,이성원 한국통신학회 2012 Journal of communications and networks Vol.14 No.6
Many studies have investigated the smart grid architecture and communication models in the past few years. However,the communication model and architecture for a smart grid still remain unclear. Today’s electric power distribution is very complex and maladapted because of the lack of efficient and costeffective energy generation, distribution, and consumption management systems. A wireless smart grid communication system can play an important role in achieving these goals. In this paper, we describe a smart grid communication architecture in which we merge customers and distributors into a single domain. In the proposed architecture, all the home area networks, neighborhood area networks,and local electrical equipment form a local wireless mesh network (LWMN). Each device or meter can act as a source, router,or relay. The data generated in any node (device/meter) reaches the data collector via other nodes. The data collector transmits this data via the access point of a wide area network (WAN). Finally,data is transferred to the service provider or to the control center of the smart grid. We propose a wireless cooperative communication model for the LWMN.We deploy a limited number of smart relays to improve the performance of the network. A novel relay selection mechanism is also proposed to reduce the relay selection overhead. Simulation results show that our cooperative smart grid (coopSG)communication model improves the end-to-end packet delivery latency,throughput, and energy efficiency over both the Wang et al. and Niyato et al. models.
Smart Grid Cooperative Communication with Smart Relay
Ahmed, Mohammad Helal Uddin,Alam, Md. Golam Rabiul,Kamal, Rossi,Hong, Choong Seon,Lee, Sungwon The Korea Institute of Information and Commucation 2012 Journal of communications and networks Vol.14 No.6
Many studies have investigated the smart grid architecture and communication models in the past few years. However, the communication model and architecture for a smart grid still remain unclear. Today's electric power distribution is very complex and maladapted because of the lack of efficient and cost-effective energy generation, distribution, and consumption management systems. A wireless smart grid communication system can play an important role in achieving these goals. In this paper, we describe a smart grid communication architecture in which we merge customers and distributors into a single domain. In the proposed architecture, all the home area networks, neighborhood area networks, and local electrical equipment form a local wireless mesh network (LWMN). Each device or meter can act as a source, router, or relay. The data generated in any node (device/meter) reaches the data collector via other nodes. The data collector transmits this data via the access point of a wide area network (WAN). Finally, data is transferred to the service provider or to the control center of the smart grid. We propose a wireless cooperative communication model for the LWMN.We deploy a limited number of smart relays to improve the performance of the network. A novel relay selection mechanism is also proposed to reduce the relay selection overhead. Simulation results show that our cooperative smart grid (coopSG) communication model improves the end-to-end packet delivery latency, throughput, and energy efficiency over both the Wang et al. and Niyato et al. models.