Title :
Medium access control and air-interface subsystem for an indoor wireless ATM network
Author :
Srivastava, Mani B.
Author_Institution :
AT&T Bell Labs., Murray Hill, NJ, USA
Abstract :
An indoor wireless network based on room-sized cells has been prototyped at AT&T Bell Laboratories to investigate ubiquitous tetherless access to multimedia information. A distinguishing feature of this network, named SWAN, is its use of end-to-end ATM connectivity as opposed to connection-less mobile-IP connectivity used by present day wireless LANs. This paper focuses on medium access control (MAC) and air-interface sub-system in SWAN. The design of this sub-system is made interesting by the interplay of wireless aspects with ATM and mobility. A MAC based on token passing and mobile-initiated hand-off is used in conjunction with novel algorithms to reroute ATM virtual circuits. The functionality is partitioned three-way amongst dedicated hardware and dedicated embedded processor software located on a flexible wireless ATM adapter card, and the host processor software
Keywords :
access protocols; asynchronous transfer mode; indoor radio; land mobile radio; multimedia communication; radio networks; wireless LAN; SWAN; air-interface subsystem; dedicated embedded processor software; dedicated hardware; end-to-end connectivity; flexible adapter card; hand-off; indoor wireless ATM network; medium access control; mobility; multimedia information; tetherless access; token passing; virtual circuit rerouting algorithm; wireless LAN; Asynchronous transfer mode; Circuits; Embedded software; Media Access Protocol; Partitioning algorithms; Prototypes; Telephony; Wide area networks; Wireless LAN; Wireless networks;
Conference_Titel :
VLSI Design, 1996. Proceedings., Ninth International Conference on
Conference_Location :
Bangalore
Print_ISBN :
0-8186-7228-5
DOI :
10.1109/ICVD.1996.489445
