Performance enhancement of TCP/IP networks in the presence of ingress noise between nodes

The emerging scenario of convergence of mobile and fixed networks, civilian and tactical military networks as well as strategic networks is creating heterogeneous networks with different link performances. The links may have a BER ranging from 10e-2 to 10e-12 and the type of link varies from radio to co-axial to fiber. Tactical communication networks are using COTS technology and civilian intermediate nodes. Collocation of equipments meant to operate in civilian environment along with other MIL standard equipment, electrical gadgets for surveillance and monitoring, weapon control systems, etc. create high level of EMI and hence degrade performance of TCP/IP networks ultimately resulting in congestion and choking. New mechanisms are needed to handle EMI vis-a-vis congestion. This paper describes emerging scenarios, possible BER between various types of links, new coding schemes for performance enhancement and possible solutions.