Self-Organization of Wireless Ad Hoc Networks as Small Worlds Using Long Range Directional Beams

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The authors study how long range directional beams can be used for self-organization of a wireless network to exhibit small world properties. Using simulation results for randomized beamforming as a guideline, they identify crucial design issues for algorithm design. Subsequently, they propose an algorithm for deterministic creation of small worlds. They define a new centrality measure that estimates the structural importance of nodes based on traffic flow in the network, which is used to identify the optimum nodes for beamforming. This results in significant reduction in path length while maintaining connectivity.