Title :
Capacity-based connectivity of MIMO fading ad-hoc networks
Author :
Jafarkhani, Hamid ; Yousefi´zadeh, Homayoun ; Kazemitabar, Javad
Author_Institution :
Dept. of EECS, California Univ., Irvine, CA
Abstract :
We study the problem of connectivity in MIMO fading ad-hoc networks. Based on a probabilistic analysis of achievable capacity on individual links of a random topology, we introduce a novel connectivity metric for wireless ad-hoc networks. We assume a pair of nodes are connected if their bi-directional capacity is more than a given threshold. Our metric is more sophisticated compared to previously proposed metrics of connectivity as it captures the effects of time-varying fading channel, power, and multiple antennas. Our results show that employing mobile nodes with multiple antennas enhances the connectivity of fading wireless ad-hoc networks
Keywords :
MIMO systems; ad hoc networks; antenna arrays; channel capacity; fading channels; mobile radio; radio links; telecommunication network topology; MIMO fading wireless ad-hoc networks; bidirectional capacity; capacity-based connectivity; mobile nodes; multiple antennas; probabilistic analysis; random topology; time-varying fading channel; Ad hoc networks; Channel capacity; Diversity reception; Fading; MIMO; Multiaccess communication; Network topology; Signal to noise ratio; Solid modeling; Wireless networks;
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1578275
