We will provide clients for iOS, Android, Windows, macOS and other systems, and the community will also launch their clients for users based on our open-source kernel.

As a fundamental internet protocol, Tachyon Protocol can be used in many fields. Our team has focused on the online privacy & privacy problem over 5 years. And we think decentralized VPN is a good point to show what Tachyon Protocol can do. And the concept of Tachyon Protocol has been tested in X-VPN for a long time. The successful performance gives us the confidence to get a further step in decentralized VPN.

The speed of the network transmission mainly depends on three factors: 1. the current network environment; 2. the transmission protocol used; 3. the transmission path


1. Current network environment:
There are many influencing factors in the network environment that can cause the network connection failure, which will take a lot of time to re-establish the connection. For this reason, Tachyon Protocol can increase the connection success rate to 90% or above in the complex network environment by identifying the current network environment and selecting the available protocols.


2. Transmission protocol:
We all know that TCP is a reliable transmission protocol. It is generally used as the protocol of the transport layer. However, in order to maintain reliability, TCP protocol has made some compromises in terms of transmission speed:

(1) TCP protocol requires three handshakes to establish a connection, and it takes four-hand waves to disconnect, which consumes a certain amount of time;
(2) TCP header data is 20bit~60bit, which also occupies part of the transmission time;
(3) In order to ensure the reliability of message transmission, each packet is numbered, and the receiver receives in numbered order. If a packet (Let's set its serial number to 100, that is, the packet starts at the 100th byte.) is lost, the receiver cannot confirm it and its subsequent packets because of cumulative acknowledgment. The receiver sends an acknowledgment of the packet containing the 99th byte when it receives the packet after 100. This repeated acknowledgment is a signal of packet loss. If the sender receives 3 acknowledgements of the same packet, it retransmits the last unacknowledged packet. A part of the transmission time is also consumed during the packet loss processing;

(4) If the congestion control algorithm of the TCP protocol encounters large-scale congestion, it will consume a lot of time to recover to the peak traffic.

The above-mentioned problems do not exist in the corresponding UDP protocol, so the transmission efficiency of the UDP protocol will be higher. Especially in the case of network congestion, the advantage of UDP in transmission speed will be significantly greater than that of TCP; Tachyon Protocol uses UDP protocol instead of TCP for the primary transport protocol of transport layer, utilizes bandwidth-aware technology to maximize bandwidth utilization. In view of the nature of UDP, Tachyon also uses ACK management, FEC (Forward Error Correction) and other technical solutions to improve its reliability. Google's QUIC and IBM's Aspera are optimized at this level, and they have achieved great results.

3. Transmission path:
The transmission path has a great influence on the transmission speed, particularly in long-distance transmission scenarios. Tachyon combines the real-time delay, packet loss, and bandwidth information in the node to obtain the transmission efficiency between nodes in the routing path, select the appropriate transmission path, and maximize the transmission speed.


With the above improvements, Tachyon Protocol can increase the transmission speed by 10 times in the complex network environment.