In the receiver side code, in the main() function, it is receiving the data from the sender but I am unable to display it on the receiver terminal. GoBackN ARQ and Selective Repeat ARQ use repetition to manage sequence numbers and retransmissions in reliable communications. Abstract This paper considers the stop-and-wait ARQ scheme, which is the most fundamental error control method. Stop and Wait protocol involves sending one frame at a time from the transmitter to the receiver. It ensures that information is not lost due to dropped packets and that packets are received in the correct order. Stop-and-wait ARQ, also referred to as alternating bit protocol, is a method in telecommunications to send information between two connected devices. Throw SocketException ( "Could not read from socket." ) ĬlientSocket client_socket ( "localhost", 30000 ) Ĭout << "We received this response from the server:\n\"" << reply << "\"\n" Ĭout << "Exception was caught:" << e.description() << "\n" There are three flow control approaches, namely Stop and Wait, GoBackN and Selective Repeat. What is stop and wait ARQ protocol Stop-and-wait ARQ. Stop and wait protocol is very easy to implement. Throw SocketException ( "Could not bind to port." ) Ĭonst ClientSocket& ClientSocket::operator > ( std::string& s ) const Stop and Wait protocol, its problems and solutions AnshuMishra3 Read Discuss It is the simplest flow control method in which the sender will send the packet and then wait for the acknowledgement by the receiver that it has received the packet then it will send the next packet. Throw SocketException ( "Could not create client socket." ) Implementation of the ClientSocket classĬlientSocket::ClientSocket ( std::string host, int port ) If ( new_socket.m_sock > ( std::string& ) const To give you an idea of the appropriate increment value to use: a packet sent into the network takes an average of 5 time units to arrive at the other side when there are no other messages in the medium. New_socket.m_sock = ::accept ( m_sock, ( sockaddr * ) &m_addr, ( socklen_t * ) &addr_length ) A's timer should only be started (or stopped) by A-side routines, and similarly for the B-side timer. Int listen_return = ::listen ( m_sock, MAXCONNECTIONS ) īool Socket::accept ( Socket& new_socket ) const If ( setsockopt ( m_sock, SOL_SOCKET, SO_REUSEADDR, ( const char* ) &on, sizeof ( on ) ) = -1 ) Characteristics of Stop and Wait ARQ: It uses link between sender and receiver as half duplex link Throughput 1 Data packet/frame per RTT If BandwidthDelay. SocketException ( std::string s ) : m_s ( s ) Reciever side code: // SocketException class
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