TCP-Based Network Communication Optimized for Green Cloud Computing

Abstract In many clouds running around the world, much of the communication takes place over TCP. Inside clouds, a huge number of new TCP connections are created every second, carrying huge amounts of information. Different variants of TCP use different algorithms to control data flow, which vary in complexity and suitability for specific conditions. Our team has examined in detail most of the currently used TCP variants to evaluate their ability to achieve high throughput and low energy consumption in data center network conditions. Adopting the recommendations from our observations can reduce power consumption in intra-cloud communication by units or tens of percent at global scale simply by ensuring suitable TCP variants.