BROWSE
Detail
Conference Paper
An Efficient Protocol for Friend Identification and Localization in IR-UWB
Cited - time in 
Share 
Share
- Authors
- Young Woo Choi, Seong Yun Cho
- Issue Date
- 2009-11
- Citation
- International Symposium on GPS/GNSS 2009, pp.56-60
- Language
- English
- Type
- Conference Paper
- Abstract
- The conventional wireless location methods can be accomplished based on the several pre-deployed access points. However a proposed friend identification and localization system (FILS) is a method which is able to identify the location of friends using IR-UWB signal without access point. And IR-UWB signal with very short pulses and large bandwidths of more than 500MHz offers high resolution with improved ranging accuracy. Consequently, it is efficient to measure the location using IR-UWB. FILS consists of a master and several tags using IR-UWB chipsets. In order to search a tag, master attempts to connect with the tags in the master coverage. But the tags outside the master coverage cannot be detected since master can search the tag within a radius of 20m. So each tag should be able to search another tag and to transfer the information of the searched tag to master. And if more than two tags exist in the master/tag coverage, it is possible to collide with each other between the tags. Thus, not only does it generate unnecessary interference to other tags but also it decreases the opportunity to have simultaneous nearby transmission. Therefore, master and tags have an appropriate protocol to communicate with each other. In this paper, we will present the suitable protocol for FILS.
- KSP Keywords
- Access point, High-resolution, Impulse Radio Ultra-Wideband(IR-UWB), Localization systems, Nearby transmission, Ranging accuracy, Short-pulse, UWB signal, Wireless Location