Exploiting Geometric Advantages of Cooperative Communications for Energy Efficient Wireless Sensor Networks

• 作者: Irfan AHMED Mugen PENG Wenbo WANG
• 来源期刊: 通讯、网络与系统学国际期刊(英文)
• 学科: 工学
• 关键词: COOPERATIVE Communication Energy EFFICIENCY Capacity RECEIVE DIVERSITY SENSOR Network.
• 年，卷（期）: 2008,（1）
• 页码范围: 55-61
• 页数: 7页
• 分类号: TN92

摘要

Energy efficiency and enhanced backbone capacity is obtained by exploiting the geometric orientation of cooperative nodes in wireless sensor network. The cooperative communication in wireless sensor networks (WSN) gives us leverage to get the inherent advantages of its random node’s locations and the direction of the data flow. Depending on the channel conditions and the transmission distance, the number of cooperative nodes is selected, that participate in an energy efficient transmission/reception. Simulation results show that increasing the cooperative receive diversity, decreases the energy consumption per bit in cooperative communications. It has also been shown that the network backbone capacity can be increased by controlled displacement of antennas at base station at the expense of energy per bit.