This work addresses the challenge in providing reliable communication in mobile networks with intermittent, on/off links through the use of a routing overlay designed to deal with these channel impairments. Link blockage is a predominant feature of mobile networks operating at 10+ GHz frequencies, and current techniques are ill-suited to address this problem. We present an approach comprised of multiplepath routing with end-to-end coding, queue-length-based congestion control, and a negative acknowledgement (NACK) loss-recovery scheme; these are implemented in an IP-overlay. The demonstrated scenario consists of two clusters of mobile ground vehicles operating in an "urban canyon" environment. Blockage occurs on satellite links connecting the clusters. Through the use of interactive displays, demo participants gain an understanding of routing behavior.

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