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題名 | Performance Evaluation of Two Power Assignment Schemes in Packet Radio Networks=分封無線網路中兩種功率分配法則之性能評估 |
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作者 | 溫志宏; 楊文永; Wen, Jyh-horng; Yang, Wen-yung; |
期刊 | Journal of the Chinese Institute of Electrical Engineering |
出版日期 | 19951100 |
卷期 | 2:4 1995.11[民84.11] |
頁次 | 頁275-283 |
分類號 | 448.6 |
語文 | eng |
關鍵詞 | 隨機功率分配法則; 固定功率分配法則; 輸出量; 延遲; Random power assignment scheme; Fixed power assignment scheme; ALOHA; Throughput; Delay; |
中文摘要 | 無論是由功率分配或瑞雷衰退(Rayleigh fading)所造成的補獲效應(Capture effect) 都能用來改善行動無線電通信環境中隨意進接技術的性能。如果我們同時考慮上述 兩種捕獲效應的影響,則系統性能可獲得更顯著的改善。本文裡,我們探討了兩種應用於槽 式 ALOHA 分封無線網路中之功率分配法則。 此外,我們所考慮的信號捕獲效應為諸序信號 同時存在時,其中功率較其他信號功率總合為強者可以存活。 |
英文摘要 | The capture effect caused by either power assignment or Rayleigh fading can improve the performance of random-access techniques in the mobile radio environment. Moreover, if we consider both of the "man-made" and "natural" capture effect, the system performance can be noticeably improved. In this paper, the performance of two different power assignment schemes in packet radio networks with slotted ALOHA protocol is studied. Furthermore, the type of signal capture to be considered is the one where a signal involved in a collision survives if its power level exceeds the sum of the other signals participating in the same collision. Numerical calculations with relative simulations are used to demonstrate the degree of improvement. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。