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In this paper, we propose a novel multi-route approach called seamless routing for wireless ad hoc networks (SRAD) with BER metric [9] instead of shortest path (SP) metric [10], [11].
Our approach provides seamless communication for each source–destination connection pair. This is accomplished by establishing two disjoint routes between each connection pair in any ad hoc network. Consequently, the destination node receives two redundant frame copies from each sent frame (one from each route). The destination node consumes the fastest copy to reach and subsequently deletes the second copy that is delivered later via the other route.
This approach offers zero-recovery time for the destination node in the case where one of the routes fails. However, route selection depends on the BER values of the routes. In other words, the routes are selected depending on their quality. This feature reduces the received error-frames and thereby the retransmission process for the error-frames;
consequently, frame latency is reduced compared to other approaches such as the SP-based routing protocol
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IEEE/ICACT20210235 Slide.04
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