Complex sentence: BIC TCP (Binary Increase Congestion control) is an implementation of TCP with an optimized congestion control algorithm for high speed networks with high latency: so-called "long fat networks".
Split into simpler sentences: BIC TCP (Binary Increase Congestion control) is one of the congestion control algorithms that can be used for TCP. BIC is optimized for high speed networks with high latency: so-called "long fat networks".