What is adaptive flow control?

Abstract: The integration of wireless links (terrestrial and satellite) with terrestrial wired networks has been a subject of extensive research keeping in view the performance issues of TCP with wireless links.

Why does TCP use an adaptive transmission?

Key Concept: TCP uses an adaptive retransmission scheme that automatically adjusts the amount of time to which retransmission timers are set, based on the average amount of time it takes to send segments between devices. This helps avoid retransmitting potentially lost segments too quickly or too slowly.

What does TCP use for flow control?

TCP uses a sliding window flow control protocol. In each TCP segment, the receiver specifies in the receive window field the amount of additionally received data (in bytes) that it is willing to buffer for the connection.

What is flow control and congestion control in TCP?

Flow Control and Congestion Control Flow control is an end-to-end mechanism that controls the traffic between a sender and a receiver. Flow control occurs in the data link layer and the transport layer. Congestion control is used by a network to control congestion in the network.

Does TCP provide congestion control?

TCP Congestion Control techniques prevent congestion or help mitigate the congestion after it occurs. Unlike the sliding window (rwnd) used in the flow control mechanism and maintained by the receiver, TCP uses the congestion window (cwnd) maintained by the sender.

What is TCP sliding window?

The TCP sliding window determines the number of unacknowledged bytes, x , that one system can send to another. Two factors determine the value of x : The size of the send buffer on the sending system. The size and available space in the receive buffer on the receiving system.

What is difference between congestion control and TCP flow?

The main difference between flow control and congestion control is that, In flow control, Traffics are controlled which are flow from sender to a receiver. On the other hand, In congestion control, Traffics are controlled entering to the network.

What is flow control in transport layer?

Flow control is used to prevent the sender from overwhelming the receiver. If the receiver is overloaded with too much data, then the receiver discards the packets and asking for the retransmission of packets. This increases network congestion and thus, reducing the system performance.

What is the best TCP congestion control?

CUBIC is the recommended, and currently most popular congestion control/avoidance algorithm, it is the default in Linux since kernel 2.6.

What is TCP zero window size?

What Is a Zero Window? When a client (or server – but it is usually the client) advertises a zero value for its window size, this indicates that the TCP receive buffer is full and it cannot receive any more data.