由于TCP Vegas在与TCP Reno算法共存的网络环境中不能公平地竞争到带宽,TCP Vegas-A拥塞控制算法有效地改进了TCP Vegas算法在带宽竞争力弱方面的缺陷。对TCP Vegas-A算法进行了仿真研究并提出一种拥塞控制改进算法TCP NewVegas。基于NS2的仿真实验证明TCP New Vegas算法提高了与TCP Reno共存时在网络中的带宽竞争能力。
Due to Vegas incapability of seizing bandwidth fairly in heterogeneous network environments,the TCP Vegas-A congestion control algorithm improves TCP Vegas algorithm in this aspect s weak bandwidth competitive ability effectively.This paper studied the TCP Vegas-A algorithm and proposed an enhanced TCP congestion control algorithm TCP NewVegas.The simulations based on NS2 show that TCP NewVegas algorithm enhanced the band width competitive ability with TCP Reno in heterogeneous network environments.