MobiHoc '01 Proceedings of the 2nd ACM international symposium on Mobile ad hoc networking & computing
Practical asynchronous neighbor discovery and rendezvous for mobile sensing applications
Proceedings of the 6th ACM conference on Embedded network sensor systems
MobiClique: middleware for mobile social networking
Proceedings of the 2nd ACM workshop on Online social networks
U-connect: a low-latency energy-efficient asynchronous neighbor discovery protocol
Proceedings of the 9th ACM/IEEE International Conference on Information Processing in Sensor Networks
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The usefulness of proximity-based social networking applications is limited by the lack of effective and energy efficient neighbor discovery protocols. While probabilistic approaches perform well for the average case, they exhibit long tails resulting in high upper bounds on neighbor discovery latency. On the other hand, recent deterministic protocols like Disco and U-Connect improve on the worst case bound, but do so by sacrificing average case performance. In response to these limitations, we present Searchlight, an asynchronous neighbor discovery protocol that combines both deterministic and probabilistic components, and thereby achieves an average case performance comparable to the probabilistic approaches while improving on the deterministic worst case bounds.