To simulate a simple inter-process communication protocol using CSIM.

• There are five nodes in the network. Each node is fully connected to each others.
• Each node generates a HELLO packet with the inter arrival time of exponential distribution (average 5 seconds).
• A sending node transmits a HELLO packet to a randomly chosen receiving node. A receiving node replies a HELLO_ACK packet back after it receives packet. If the sending node receives the HELLO_ACK, the transmission is successful.
• The transmission time is 0.1.
• The transmission delay (e.g., local processing time) is 0.2.
• The loss probabilities of packet are (0.1, 0.2, 0.3, 0.4, 0.5), due to the unreliable network quality.
• The timeout period is 2 seconds. If sending node does not receive the HELLO_ACK packet within timeout period, it retransmits a HELLO packet. If sending node still does not receive the HELLO_ACK, then transmission is failed.

• install Code::Blocks and C Programming Language
• install CSIM

csim64.gcc project.c -o project
./project

• Specify a loss probability of packet.

Enter a loss probability value:

• Example of statistical results.

Statistics of loss probability: 0.300000
Average number of successful transmissions 0.59
Average number of failed transmissions 0.41
Average roundtrip time 0.50
Node 0 generates 108 packets
Node 1 generates 120 packets
Node 2 generates 90 packets
Node 3 generates 110 packets
Node 4 generates 116 packets

• Sanpshot of events when packet loss probability is 0.3
  
  
• The performance metrics against the loss probabilities (0.1, 0.2, 0.3, 0.4, 0.5)

• Jaturong Kongmanee - jaturongkongmanee.github.io/jk/

• Assistant Professor Sunho Lim, Ph.D.

• CSIM - Official Documents
• CSIM - Michigan State University
• CSIM - University of Pittsburgh
• CSIM - The Chinese University of Hong Kong
• CSIM - U of T
• VIM Tutorial
• Computer Architecture
• Arrays in C