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Moving Away From Collision Avoidance: Towards Collision Detection in Wireless Networks

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Executive Summary

Wireless networks are founded on the principles of collision avoidance. This paper makes an attempt to detect and abort collisions in wireless networks. Briefly, the receiver uses physical layer information to detect collisions, and immediately notifies the transmitter to abort transmission. The collision notification consists of a unique signature, sent on the same frequency channel as the data. The transmitter uses a second listener antenna to discern this notification through signature correlation.

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