Title :
Handoff functions for a Distributed Queuing Collision Avoidance Medium Access Control protocol for Wireless LANs
Author :
Alonso-Zárate, J. ; Kartsakli, E. ; Antonopoulos, A. ; Alonso, L. ; Verikoukis, Ch
Author_Institution :
Centre Tecnol. de Telecomunicacions de Catalunya (CTTC), Barcelona, Spain
Abstract :
The distributed queuing with collision avoidance (DQCA) medium access control (MAC) protocol has been presented in the literature as a high-performance protocol for uplink traffic in WLANs. Previous works regarding DQCA are focused on the operation of a single cell, where no interaction with neighboring sites is considered. In this paper, we define specific handoff functions (channel sensing, discovery and reassociation functions) that enable the roaming of users in a scenario composed by a number of different DQCA access points deployed in a specific area using different channel frequencies.
Keywords :
access protocols; queueing theory; telecommunication traffic; wireless LAN; MAC protocol; channel sensing; distributed queuing collision avoidance; handoff functions; medium access control protocol; reassociation functions; uplink traffic; wireless LAN; Access protocols; Collision avoidance; Communication system traffic control; Media Access Protocol; Propagation delay; Roaming; State feedback; Telecommunication traffic; Wireless LAN; Wireless application protocol; DQCA; MAC; WLAN; handoff;
Conference_Titel :
Ultra Modern Telecommunications & Workshops, 2009. ICUMT '09. International Conference on
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4244-3942-3
Electronic_ISBN :
978-1-4244-3941-6
DOI :
10.1109/ICUMT.2009.5345513
