Cooperation among mobile devices and utilizing multiple interfaces such ascellular and local area links simultaneously are promising to meet theincreasing throughput demand over cellular links. In particular, when mobiledevices are in the close proximity of each other and are interested in the samecontent, device-to-device connections such as WiFi-Direct, in addition tocellular links, can be utilized to construct a cooperative system. However, itis crucial to understand the potential of network coding for cooperating mobiledevices with multiple interfaces. In this paper, we consider this problem, and(i) develop network coding schemes for cooperative mobile devices with multipleinterfaces, and (ii) characterize the performance of network coding by usingthe number of transmissions to recover all packets as a performance metric.
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