Title :
Localization system improvement using a special designed sectorised antenna
Author :
Brás, Luis ; Oliveira, Marco ; Guenda, Ludimar ; Carvalho, Nuno Borges ; Pinho, Pedro
Author_Institution :
Dept. de ETI, Telecomun. e Inf., Univ. de Aveiro, Aveiro, Portugal
Abstract :
This paper presents the impact of different antenna strategies for localization scenarios evaluation, based on ZigBee wireless sensor networks (WSN). On our first strategy the Received Signal Strength (RSS) is measured and evaluated using a chip antenna on the mobile unit, and a patch antenna on the WSN fixed nodes. Then, we present another strategy where all fixed nodes are exchanged by a new type of antenna called Hive5, a sectorised antenna that combines RSS and Angle of Arrival (AoA) in the same node. This antenna will improve significantly the localization system, either in resolution, and/or cost.
Keywords :
Zigbee; direction-of-arrival estimation; microstrip antennas; wireless sensor networks; Hive5 antenna; WSN fixed nodes; ZigBee wireless sensor networks; angle of arrival estimation; chip antenna; localization system improvement; mobile unit; patch antenna; received signal strength strategy; sectorised antenna; Antenna measurements; Microstrip antenna arrays; Mobile communication; Patch antennas; Wireless sensor networks; AoA; RSSI; horn antenna; localization systems; sectorised switch beam antenna;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5996547
