أبحاث أعضاء هيئة التدريس

أنت هنا

Building an Energy-Efficient Prediction S-MAC Protocol for Wireless Networks محمود عبدالعزيز السخاوي - رئيس قسم نظم المعلومات

With the rapid development of wireless networking and micro-electro-mechanical systems (MEMS), wireless sensor networks (WSNs) have been immerged. WSNs consist of large amount of small, low-end, resource constrained devices, called sensors. Since sensor nodes are usually intended to be deployed in unattended or even hostile environments, it is almost impossible to recharge or replace their batteries. One of the most important research issues in the wireless sensor networks is to extend the network lifetime by energy efficient battery management. So, there are a lot of approaches that are designed to reduce the power consumption of the wireless sensor nodes. In this paper; a new protocol named "prediction S-MAC protocol" is proposed to reduce the power consumption of the wireless sensor nodes and to improve their performance compared to the previous S-MAC protocols.

...
Prediction S-MAC protocol for Wireless Networks محمود عبدالعزيز السخاوي - رئيس قسم نظم المعلومات

   A wireless sensor node, being a microelectronic device, can only be equipped with limited power sources, e.g., batteries. Since wireless sensors are usually intended to be deployed in unattended or even hostile environments, it is almost impossible to recharge or replace their batteries. The lifetime of a sensor node is much dependent on its power consumption. Hence, energy efficiency is of highly concern to the wireless sensor networks design.

In this paper a prolong listening protocol is studied. This protocol is increasing both throughput and average node life while decreasing both average packet delay and average node power consumption compared to both periodic listen & sleep and adaptive listen protocols. A new protocol named prediction S-MAC protocol is proposed to improve the performance parameters of the existing S-MAC protocols. Simulation results show that prediction S-MAC protocol increases both throughput and average node life while decreasing both delay and average node power consumption compared to prolong listening protocol.

Key words: Wireless sensor network; Sensor medium access control (S-MAC) protocol; periodic listen and sleep; adaptive listen; prolong listen; prediction S-MAC protocol; network life.

...
Propose Medium Access Control for Wireless Sensor Networks محمود عبدالعزيز السخاوي - رئيس قسم نظم المعلومات

Mahmoud A. El-Sakhawy , Imane A. Saroit, "Propose Medium Access Control for Wireless Sensor Networks", third annual conference (INFOS 2005), faculty of computers and information, Cairo University, Cairo, Egypt, 19-22 March 2005.

...
QR Code for https://cbah.psau.edu.sa/ar/sources/research/2