Analysis of Collision Probability with Capture Effect in Frame Slotted Aloha Protocol

• Main Authors: CHEN,WEI-MING, 陳偉明
• Other Authors: HWANG, CHI-KUANG
• Format: Others
• Language: en_US
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/htqj22

碩士 === 中華大學 === 電機工程學系 === 106 === It can play an important role in analyzing collision probability on the basis of framed slotted aloha (FSA) protocol for system performance evaluation. According to the previous research, it’s difficult to derive an exact and closed-form collision probability expression without approximation. A novel exact closed-form formula (ECFF) has been purposed, but only 2-packet in the same slot defined as collision case is discussed. In this thesis, we take into account the “Capture Effect” for packet transmission, and 3-packet in the same slot defined as collision case is reinvestigated, and correspondent collision probability formulas are derived via Laplace and Z transforms to deal with the hybrid-state system equation. Comparisons between these two types of collision are made with the aid of numerical simulation.