Title :
On the Capacity of Multi-Hop Wireless Networks with Heterogeneous Antennas
Author :
Bazan, Osama ; Jaseemuddin, Muhammad
Author_Institution :
Dept. of Electr. & Comput. Eng., Ryerson Univ., Toronto, ON, Canada
Abstract :
Recently, the use of directional antennas in multi-hop wireless networks has received increasing attention in the research community due to their potential benefits and numerous advantages over omni-directional antennas. However, the majority of existing work has focused on homogeneous wireless networks where all the nodes are equipped with the same beamforming antennas. In this work, we focus on multi-hop wireless networks with heterogeneous antennas capabilities, a scenario that is expected to prevail in next generation wireless networks. We address the fundamental question: Given a specific network topology with heterogeneous antennas, what are the theoretical capacity bounds of such network? For that purpose, we formulate the problem as an optimization problem and compute the upper and lower bounds. Our results show that the capacity of heterogeneous multi-hop wireless networks can be significantly increased even with small fraction of directional nodes.
Keywords :
directive antennas; optimisation; radio networks; telecommunication network topology; beamforming; heterogeneous antennas; multihop wireless network capacity; network topology; Ad hoc networks; Array signal processing; Directive antennas; Spread spectrum communication; Wireless networks;
Conference_Titel :
Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 IEEE 72nd
Conference_Location :
Ottawa, ON
Print_ISBN :
978-1-4244-3573-9
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2010.5594549