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Concurrent Cooperative Transmission (CCT) is a Cooperative Transmission (CT) technique, also known as distributed transmit diversity, where a collection of single-antenna nodes induce a signal-to-noise-ratio advantage in a receiver by transmitting multiple copies of the same message, at the same time, in multiple diversity channels. CCT has been considered in many physical layer system studies including realistic demonstrations, which presented cooperative diversity gain in terms of error rate improvement or range extension. However, there have been very few attempts to evaluate CCT-based network routing schemes on a testbed with consideration of the overheads and challenges that CCT poses to the higher layers.
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