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The effect of multipath interference on the performance of random accessing
Author(s) -
Wen JyhHorng,
Chang JinFu
Publication year - 1999
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/(sici)1099-1131(199901/02)12:1<65::aid-dac386>3.0.co;2-v
Subject(s) - aloha , computer science , multipath propagation , multipath interference , network packet , interference (communication) , delay spread , computer network , capture effect , channel (broadcasting) , key (lock) , power (physics) , telecommunications , throughput , wireless , computer security , physics , quantum mechanics
This paper studies the effect of multipath interference on the performance of random access techniques in which the power level of a packet depends on its time of arrival. The protocols considered are pure ALOHA and slotted ALOHA. Key performance measures such as channel throughout and mean packet delay are obtained. These results are derived partially using minislot approximation and are verified via computer simulations. For practical purposes in evaluating the successful packet reception probability the signal capture effect is also taken into consideration. How seriously the multipath interference affects the two protocols are witnessed through numerical examples. Copyright © 1999 John Wiley & Sons, Ltd.