Title :
On acknowledgement schemes of sliding window flow control
Author :
Choi, Jun-Kyun ; Un, Chong K.
Author_Institution :
SDN Dev. Dept., Electron. & Telecommun. Res. Inst., Chungnam, South Korea
fDate :
11/1/1989 12:00:00 AM
Abstract :
An investigation is conducted of two acknowledgment schemes for sliding window flow control in packet communications: the delayed acknowledgment (D-ACK) scheme and the window acknowledgment (W-ACK) scheme. It is shown that the acknowledgment scheme of the link layer of the X.25 protocol can be modeled by the D-ACK scheme and that of the packet layer by the W-ACK scheme. The efficiencies of these acknowledgment schemes are shown by the mean number of acknowledgment control frames generated for the transmission of a single information frame, the transmission blocking probability, and the mean transmission time of data frames. Numerical and simulation results showing that the D-ACK scheme with an appropriately selected value of predetermined waiting time is better than the W-ACK scheme are presented
Keywords :
packet switching; protocols; queueing theory; D-ACK; W-ACK; X.25 protocol; acknowledgement schemes; data frames; link layer; packet communications; packet layer; packet switching; queueing theory; sliding window flow control; transmission blocking probability; Data communication; Delay; Joining processes; Packet switching; Performance analysis; Performance evaluation; Protocols; Size control; Sliding mode control; Transmitters;
Journal_Title :
Communications, IEEE Transactions on
