Telecommunication networks: protocols, modeling and analysis
Telecommunication networks: protocols, modeling and analysis
The active badge location system
ACM Transactions on Information Systems (TOIS)
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
The Cricket location-support system
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Computer Networks: The International Journal of Computer and Telecommunications Networking - Wireless networking
Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
LANDMARC: Indoor Location Sensing Using Active RFID
PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
An empirical analysis of the IEEE 802.11 MAC layer handoff process
ACM SIGCOMM Computer Communication Review
The Horus WLAN location determination system
Proceedings of the 3rd international conference on Mobile systems, applications, and services
An Introduction to RFID Technology
IEEE Pervasive Computing
COMPASS: A probabilistic indoor positioning system based on 802.11 and digital compasses
WiNTECH '06 Proceedings of the 1st international workshop on Wireless network testbeds, experimental evaluation & characterization
Wireless Information Networks (Wiley Series in Telecommunications and Signal Processing)
Wireless Information Networks (Wiley Series in Telecommunications and Signal Processing)
Improved handover performance in wireless mobile IPv6
ICCS '02 Proceedings of the The 8th International Conference on Communication Systems - Volume 02
RFID Indoor Positioning Based on Probabilistic RFID Map and Kalman Filtering
WIMOB '07 Proceedings of the Third IEEE International Conference on Wireless and Mobile Computing, Networking and Communications
IEEE 802.11 Handovers Assisted by GPS Information
WIMOB '06 Proceedings of the 2006 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications
Packet-switching in a slotted satellite channel
AFIPS '73 Proceedings of the June 4-8, 1973, national computer conference and exposition
On the energy consumption of Pure and Slotted Aloha based RFID anti-collision protocols
Computer Communications
WIFE: Wireless Indoor Positioning Based on Fingerprint Evaluation
NETWORKING '09 Proceedings of the 8th International IFIP-TC 6 Networking Conference
RFID-assisted indoor localization and the impact of interference on its performance
Journal of Network and Computer Applications
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Location awareness in an indoor environment and wireless access to Internet applications are major research areas towards the overwhelming success of wireless and mobile communications. However, the unpredictable indoor radio propagation and handover latency due to node mobility are the main challenging issues that need to be addressed. For tackling efficiently both problems of indoor localization and handover management, we propose combining key benefits of two outstanding wireless technologies, i.e. radio frequency identification (RFID) and a wireless local area network (WLAN) infrastructure. WLANs, such as IEEE 802.11 (WiFi), are now very common in many indoor environments for providing wireless communication among WiFi-enabled devices by accessing an Access Point (infrastructure mode) or through peer to peer connections (ad hoc mode). However, the small cell size of the Access Points (APs) in a WiFi-based network drives the need for frequent handovers leading to increased latency. RFID is an emerging technology consisting of two basic components, a tag and a reader, and its main purpose is the automatic identification of tagged objects by a reader. However, in the presence of multiple readers, RFID suffers from the so-called reader collision problem, mainly due to the inability for direct communication among them. In this paper, we propose a hybrid RFID and WLAN system; the RFID technology is employed for collecting information that is used for both localization and handover management within the WLAN, whereas the WLAN itself is utilized for controlling and coordinating the RFID reading process. In our system architecture, tag IDs of a RFID tag deployment are correlated with both location and topology information in order to determine the position and predict the next subnetwork of a Mobile Node (MN) with a reader attached to its mobile device. The role of the WLAN is to coordinate the readers when accessing the RFID channel for retrieving tags' IDs, hence compensating the persisting RFID collision problem among multiple readers. Numerical results based on extensive simulations validate the efficiency of the proposed hybrid system in providing accurate and time efficient localization and reducing the IP handover latency.