Robust MANET Routing Using Adaptive Path Redundancy and Coding

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Executive Summary

Providing efficient networking services in MANETs is very challenging in presence of mobility, unpredictable radio channel and interference: a significant number of packets can be corrupted and/or lost. To increase reliability, various measures have been proposed. A popular approach is to use multiple paths and transmit identical copies of the packet on each path (i.e., path redundancy). A more efficient way is to use random Network Coding on top of the multiple paths and send differently coded packets on each path. Network Coding can improve delivery efficiency. But, it also increases delays and network overhead.

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