On Bit-Rate Selection for Opportunistic Routing

Opportunistic Routing (OR) schemes, such as ExOR, have been shown to provide significant throughput gains over traditional best-path routing schemes for wireless networks. Though the performance of OR schemes depend on the bit-rate, they currently use a fixed rate for transmitting packets. While several schemes have been proposed for selecting bit-rate for unicast transmission to a single receiver, none of them are suitable for broadcast transmission to multiple receivers under OR. This paper attempts to maximize the benefits of OR with dynamic bit-rate selection.