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— Today's Push-to-talk (PTT) services are infrastructure based and require stable end-to-end paths for successful communication. However, users with PTT enabled mobile devices may roam in challenged environments where infrastructure is not available. In such cases the traditional PTT services may exhibit poor performance or even fail completely.(More)
networks has been explored in the past, such approaches attempt to establish an end-to-end path for communications, which may be unstable and exhibit bad performance over multiple hops; and often the node density may be insufficient to establish such paths in the first place. In this demo, we apply the concept of asynchronous message passing using(More)
Mobile ad-hoc networks, especially when they are sparse, are not well suited for ad-hoc voice communication when using end-to-end real-time audio streams: as paths grow in length, stability and forwarding performance suffer, and sometimes paths may not exist at all. In this paper, we suggest using asynchronous voice messaging built upon delay-tolerant(More)
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