We present a hierarchical protocol for communications on battlefields. In battlefields operates various military mobile objects, such as tanks, vehicles, soldiers, flying vehicles, etc. that need to communicate quickly and will minimum of overhead, in order to accomplish their missions. Depending on the battlefield conditions, mobile objects will move in groups, which elements will have a small relative speed. We use this feature to develop our Hierarchical Communications Protocol (HCP) for battlefields that builds a virtual infrastructure of the battlefield The hierarchical structure enables the optimization of the routing process.

The battlefield is divided in virtual cells, which move as the nodes move. Each cell has a center, which is chosen by the cell members and is located approximately in the geographical center of the cell. The center will behave for a certain time interval as a Base Station. Every node has its geographical position given by Global Positioning System. HCP enables point-to-point and broadcast communications.

The major characteristic of HCP is its scalability, which is validated by our simulation results.