Converge-cast with MIMO

—This paper investigates throughput and delay based on a newly predominant traffic pattern, called converge-cast, where each of the n nodes in the network act as a destination with k randomly chosen sources corresponding to it. Adopting Multiple-Input-Multiple-Output (MIMO) technology, we devise two many-to-one cooperative schemes under converge-cast for both static and mobile ad hoc networks (MANETs), respectively. In a static network, our scheme highly utilizes hierarchical cooperation MIMO transmission. This feature overcomes the bottleneck which hinders converge-cast traffic from yielding ideal performance in traditional ad hoc network, by turning the originally interfering signals into interference-resistant ones. It helps to achieve an aggregate throughput up to Ω(n1−ϵ ) for any ϵ > 0. In the mobile ad hoc case, our scheme characterizes on joint transmission from multiple nodes to multiple receivers. With optimal network division where the number of nodes per cell is...

• Type: Journal
• Year: 2011
• Where: INFOCOM
• Authors: Luoyi Fu, Yi Qin, Xinbing Wang, Xue Liu
• Keywords: Aggregate Throughput, Communications, INFOCOM 2011, Mobile Ad Hoc Networks, Theoretical Perspective