Title :
Exploiting directional antennas to provide quality of service and multipoint delivery in mobile wireless networks
Author :
Steenstrup, M.E.
Author_Institution :
Stow Res., LLC, Flanders, NJ, USA
Abstract :
In this paper, we present a TDMA-based medium access control (MAC) algorithm specifically designed for link scheduling in a mobile wireless network composed of nodes equipped with directional antennas, each of which is capable of forming a single beam in an arbitrary direction. Using the MAC algorithm, a node negotiates slot reservations with a neighbor based only on information about the two nodes´ available slots and the expected traffic load. We provide simulation results illustrating the performance of this algorithm in terms of goodput, delay, and success of reservations, and we also compare its performance against that of a CSMA/CA MAC algorithm designed for use with directional antennas. Furthermore, we show that if the capabilities of each antenna are expanded to include formation of multiple simultaneous beams, then the MAC algorithm can be extended to efficiently negotiate reservations for multicast transmissions.
Keywords :
directive antennas; mobile communication; multibeam antennas; multicast communication; quality of service; radio links; time division multiple access; MAC; TDMA; directional antennas; link scheduling; medium access control algorithm; mobile wireless network; multicast transmissions; multipoint delivery; quality of service; Algorithm design and analysis; Delay; Directional antennas; Media Access Protocol; Multiaccess communication; Multicast algorithms; Quality of service; Scheduling algorithm; Telecommunication traffic; Wireless networks;
Conference_Titel :
Military Communications Conference, 2003. MILCOM '03. 2003 IEEE
Print_ISBN :
0-7803-8140-8
DOI :
10.1109/MILCOM.2003.1290297