SAMAC: A Cross-Layer Communication Protocol for Sensor Networks with Sectored Antennas

Authors:
Emad Felemban;Serdar Vural;Robert Murawski;Eylem Ekici;Kangwoo Lee;Youngbag Moon;Sangjoon Park
Affiliations:
Umm al-Qura University, Makkah, Saudi Arabia;University of Surrey, UK;Ohio State University, Columbus;Ohio State University, Columbus;Electronics and Telecommunications Research Institute, Daejeon;Electronics and Telecommunications Research Institute, Daejeon;Electronics and Telecommunications Research Institute, Daejeon
Venue:
IEEE Transactions on Mobile Computing
Year:
2010

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Abstract

Wireless sensor networks have been used to gather data and information in many diverse application settings. The capacity of such networks remains a fundamental obstacle toward the adaptation of sensor network systems for advanced applications that require higher data rates and throughput. In this paper, we explore potential benefits of integrating directional antennas into wireless sensor networks. While the usage of directional antennas has been investigated in the past for ad hoc networks, their usage in sensor networks bring both opportunities as well as challenges. In this paper, Sectored-Antenna Medium Access Control (SAMAC), an integrated cross-layer protocol that provides the communication mechanisms for sensor network to fully utilize sectored antennas, is introduced. Simulation studies show that SAMAC delivers high energy efficiency and predictable delay performance with graceful degradation in performance with increased load.