"Wi-Fi Direct will connect at existing Wi-Fi speeds-- up to 250 mbps. Wi-Fi Direct devices will also be able to broadcast their availability and seek out other Wi-Fi Direct devices."
Describes the need of having a highly reliable and efficient mean of communication between soldiers on the battlefield. Although this solution is using some external wide area connectivity it mostly depends on local one, this is achieved with the introduction of 4G technology as a support to MANET. This is why it is more reliable than other solutions, and on the battlefield reliability plays a major factor in the result of the battle.
M. Bilal, and M. Kang. (2012)cite arxiv:1801.00389Comment: 5 pages, 6 Figures, Presented in 14th International Conference on Advanced Communication Technology IEEE ICACT'12. February 2012, South Korea.
P. Sander, J. Snyder, S. Gortler, and H. Hoppe. SIGGRAPH '01: Proceedings of the 28th annual conference on Computer graphics and interactive techniques, page 409--416. New York, NY, USA, ACM, (2001)