A new long-distance communication retransmission control scheme

Abstract

This paper proposes a new retransmission scheme for achieving high-speed transmission by reducing the retransmission delay time caused by packet loss. High-speed data packet transmission can be realized by sending user datagram protocol (UDP) packets continuously over long-distance wireless systems. The UDP characterizes connectionless communication, requiring the use of a retransmission scheme for reliable quality. However, the transmission speed will reduce with repeated retransmissions over time. The key advantage of the proposed scheme is that the retransmission waiting time can be dramatically reduced by transmitting data packets in descending order from the last data packet. It is verified via a computer simulation that the average peer-to-peer network configuration receiving time can be approximately halved and a 20% improvement in throughput with a packet error rate of 0.1 can be achieved by the proposed scheme.

[Paper] High Efficiency Retransmission Control for Bidirectional Field Pick-up Unit Systems

“…The I-SACK method 13) is proposed to resolve the SR retransmission control problems described in Section 2. Similar to SR, I-SACK continuously transmits packets; however, in I-SACK packets are transmitted in reverse order, with the last packet being sent first.…”

“…Previous researchers have evaluated I-SACK and determined that it is highly effective. However, these studies 13) only evaluated I-SACK under unidirectional communication. The ultimate goal of the present study is to achieve I-SACK bidirectional communication; to this end, we devised an I-SACK bidirectional retransmission control.…”

“…Because we intend to commercially develop the FPU system, we set parameter values such as transmission rate and distance to correspond to the configuration of a system currently under development 13) . Accordingly, we used the following parameters in the computer simulations: 154 Mbps transmission rate, 1,078 byte packet size, and 1 ms transmission delay.…”