A reliable UDP for ubiquitous communication environments

In the incoming ubiquitous communication environments, a large number of ubiquitous terminal devices tend to communicate with a specific server or other devices that locate locally. This pervasive terminal-initiated communication will become more popularized. In this paper, we propose a reliable communication protocol, called RUDP, that is designed for ubiquitous communication environments where a large number of terminal devices frequently send a short size of requests. The RUPD contains a reliable connection-oriented protocol, which uses a three-way handshaking for connection establishment and a resend mechanism for packet loss, taking advantages of TCP. To observe the performance and reliability, we compare experimental results of RUPD with TCP on top of Java and. NET platforms. The RUDP that we propose in this paper achieves fast and reliable communication compared to an ordinary TCP communication.

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