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引用次数: 2
摘要
传感器的灵活使用使其成为一种有吸引力的设备,几乎可以部署在生活的各个领域,如医疗、军事和家庭。最近电子和无线通信的进步见证了低成本传感器设备的发展。虽然无线传感器网络(wsn)使用灵活且成本较低,但由于它们是由电池驱动的,因此需要更高的能效。它们大多被部署在恶劣的环境中,在那里很难经常更换电池。为了有效地获取无线信道,已经开发了几种介质访问控制(MAC)算法,但没有一种是令人满意的。本文提出了一种介质访问控制算法MAC-PE。MAC-PE基于优先帧的概念,优先帧被紧急传输。此外,它使用基于调度的MAC,而不是随机访问信道。我们发现MAC- pe (power - efficient MAC)在不牺牲使用NS-2的性能的情况下,在功耗方面是有效的。
Power Efficient Scheduled-Based Medium Access Control Protocol over Wireless Sensor Networks
The flexible use of sensors has made them an attractive device to be deployed in almost every field of life such as health, military and home. Recent advancement in electronics and wireless communications has witnessed the development of low cost-sensor devices. While wireless sensor networks (WSNs) are flexible to use and less costly, they need to be more energy-efficient as they are operated by the battery. Mostly they are deployed in harsh environments where it is very difficult to change the batteries frequently. Several medium access control (MAC) algorithms have been developed for the energy-efficient acquisition of the wireless channel, however, none of them are satisfactory. In this paper, we proposed a medium access control algorithm called MAC-PE. MAC-PE is based on the concept of prioritized frames where prioritized frames are transmitted urgently. In addition, it uses scheduled-based MAC instead of accessing channel randomly. We found MAC-PE (Power-Efficient MAC) was efficient in terms of power consumption without sacrificing on the performance using NS-2.