DocumentCode :
1890647
Title :
Towards improved connectivity with hybrid uni/omni-directional antennas in wireless sensor networks
Author :
Shankar, Sonu ; Kundur, Deepa
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX
fYear :
2008
fDate :
13-18 April 2008
Firstpage :
1
Lastpage :
4
Abstract :
Connectivity is a crucial requirement for wireless sensor network deployments. Without being able to guarantee a reasonable level of connectivity, many critical network operations may not be possible. Traditionally, omni-directional antennas have been used for communication in wireless sensor networks. In this paper, we analyze the effects on connectivity when a hybrid approach towards antennas is employed, by using both omni and sectorized uni-directional antennas. We present results that help understand the relationship between node density, transmission radius, uni-directional antenna beam width and network connectivity. We demonstrate that, under a broad class of conditions, a hybrid sectorized approach drastically improves connectivity and reaches higher probabilities of 100% connectivity at much smaller node densities and transmission radii. We also suggest neighborhood management procedures for a hybrid approach and comment on the costs involved in practically implementing our paradigm.
Keywords :
directive antennas; wireless sensor networks; hybrid uni/omni directional antenna; wireless sensor network; Computer networks; Costs; Directive antennas; Energy consumption; Optical sensors; Routing; Sensor phenomena and characterization; Sensor systems; Transmitting antennas; Wireless sensor networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
INFOCOM Workshops 2008, IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4244-2219-7
Type :
conf
DOI :
10.1109/INFOCOM.2008.4544587
Filename :
4544587
Link To Document :
بازگشت