Adaptive Wireless Multipath Access Solution for Transport Telematics

Intelligent Transportation Systems solutions require availability of the selectable range of wireless telecommunications services with guaranteed coverage and service quality. Even though publically available mobile wireless data services can usually offer acceptable service coverage and reasonable pricing, providers' portfolios mostly do not include guarantee of any data services quality. Private solutions can frequently guarantee relevant quality of provided service, however, such solutions are not typically ready for the wide area mobile coverage. Authors of this paper propose mobile solution alternative with more efficient quality as well as wide area coverage management based on the dynamical seamless handover of the best possible service from the set of just accessible different wireless alternatives. In contrary to the proposed standards ISO TC204, WG16.1 (CALM) or IEEE 802.21 based on the L2 switching and Policy-based Management (PBM) authors introduce alternative in category of the "intelligent" routing, i.e. solution based and implemented exclusively on the routing L3. Success of proposed solution is strongly dependent on efficient adaptive decisions processes which are managing selection of the best possible alternative between the available ones. Such approach has got remarkable advantage in relatively simple system integration based dominantly on the SW implementation with no or very limited additional requirements on mostly off shelf available hardware. 1