  Efficient routing is one of the key challenges for next generation vehicular
networks in order to provide fast and reliable communication in a smart city
context. Various routing protocols have been proposed for determining optimal
routing paths in highly dynamic topologies. However, it is the dilemma of those
kinds of networks that good paths are used intensively, resulting in congestion
and path quality degradation. In this paper, we adopt ideas from multipath
routing and propose a simple decentral scheme for Mobile Ad-hoc Network (MANET)
routing, which handles passive load balancing without requiring additional
communication effort. It can easily be applied to existing routing protocols to
achieve load balancing without changing the routing process itself. In
comprehensive simulation studies, we apply the proposed load balancing
technique to multiple example protocols and evaluate its effects on the network
performance. The results show that all considered protocols can achieve
significantly higher reliability and improved Packet Delivery Ratio (PDR)
values by applying the proposed load balancing scheme.
