Simulation Based Analysis of the Impact of Hidden Terminal to the TCP Performance in Mobile Ad Hoc Networks
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چکیده
The hidden terminal is classified as the sending hidden terminal and receiving hidden terminal in this paper. The quantitive analysis of hidden terminal problem and simulation-based analysis of its mechanism is discussed. Through the extensive ns2 simulations the detail comparison for the impact of sending hidden terminal and receiving hidden terminal to the performance of TCP is also given. The results show that the hidden terminal will produce large volume of MAC packets collisions and RET packet loss, so the TCP always goes into RTO. In the same sending rate, UDP receiving hidden terminal is more harmful (drop TCP to 20%) to the TCP performance than sending hidden terminal (drop TCP to 80%). However, TCP sending hidden terminal is more harmful to the TCP performance than receiving hidden terminal.
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