LIVA: An efficient local breakout scheme for V2V communicatons

Vehicle-to-vehicle (V2V) communications over cellular networks has recently attracted significant interest. Existing networks can support some but not all related V2V services. This type of communication is of localized interest since data exchange takes place mainly between neighbouring vehicles. Standardized solutions, force all traffic to pass through the core network adding unnecessary delay and traffic load. Existing solutions to support localized traffic, through local breakout schemes have been already proposed. However, they come along some inefficiencies since they were originally designed for use cases with different characteristics compared to V2V communications. The paper discusses a new scheme, called LIVA, that addresses these inefficiencies by adding a new entity closer to the edge of the network. The paper includes a detailed description of the solution and also it quantifies the gains of this scheme.