Selective MIMO in Vehicular Communication for Reliable Safety Services and High Speed Non-Safety Services

There are lots of advancements going on in the vehicular community in terms of technological improvements. Vehicular communication is one of the domains which is driving the expectations of the people from vehicular technology. These expectations include more safety services while driving a car on roads and highways like vehicle collision warning, intersection warning, emergency brake warning, etc. Vehicular communication not only supports safety services but also provides non-safety services like navigation support, toll collection, parking payment, etc. Consequently, people’s demands on vehicular technology are increasing even more. So, the vehicular community needs to adopt new technology and upgrade communication framework so that it can fulfill the desired expectations. Therefore, an increment in reliability and data rate is required. Multiple Input Multiple Output (MIMO) is a next generation technology that can be helpful in this regard. Hence, we propose a modified PHY layer to accommodate two types of MIMO (Transmit Diversity and Spatial Multiplexing) and to use them in a selective way based on the service requirements. Our experimental results demonstrate that our proposed model can achieve up to 15 dB gain in terms of reliability and improve the throughput up to 2.3 times compared to the conventional DSRC model.