Hierarchical Cooperation Achieves Linear Capacity Scaling in Ad Hoc Networks

— n source and destination pairs randomly located in a fixed area want to communicate with each other. It is well known that classical multihop architectures that decode and forward packets can deliver at most a √ n-scaling of the aggregate throughput. The performance is limited by the mutual interference between communicating nodes. We show however that a linear scaling of the capacity with n can in fact be achieved by more intelligent node cooperation and distributed MIMO communication. The key ingredient is a hierarchical and digital architecture for nodal exchange of information for realizing the cooperation.

• Type: Conference
• Year: 2007
• Where: INFOCOM
• Authors: Ayfer Özgür, Olivier Lévêque, David N. C. Tse
• Keywords: Classical Multihop Architectures, Communications, Destination Pairs, INFOCOM 2007, Intelligent Node Cooperation