Part of them are successfully received, by dividing the amount of That N packets are passing through the channel in a unit of time and if X 8L, and the total number of the transmitted bits N x 8(L+H). Knowing that each packet is carrying 8L useful bits, we can easyĭetermine the total number of the payload successfully sent bits, S x N The shadowed packets have erroneous bits and theyīecame useless, being considered lost packets. 1 is shown the data packages stream, each packet having a Now PER-Packet Error Rate (notation P) can be calculated: For a data packet withĪ length of L+H bytes, we have a packet success probability S as in Successful transmission probability as s = 1 - p. If p is the bit error probability, then we can calculate the bit Performance, BER Bit Error Rate, p in notations below, is usuallyĪt the PHY level a data packet contains the payload (user data, Līytes length) and different overheads: high level protocol overheads, Depending on the modulation technique and the channel The efficiency,, if we do know the error probability for a From this point of view, we can calculate
#MODELIO AN ERROR HAS OCCURRED FREE#
Some packets are not error free and theyĪre considered lost packets. The basic model is considering a communication channel with no FEC Knowing the channel data rate R, it is possible to calculate theĬhannel throughput multiplying channel efficiency with the transmission Number of useful data bits (payload) and the total number of bits whichĪre sent.
Parameter is the channel efficiency, defined as the ratio between the In terms of transferred bits, a more appropriate
The utilization time for sending the payload and the total time while This parameter is defined as the ratio between The communication channel efficiency is mainly reflected by the APA style: An efficiency optimization model for 802.11 wireless communication channels/802.11 protokolo bevielio rysio kanalu optimizavimo modelio efektyvumo tyrimas.An efficiency optimization model for 802.11 wireless communication channels/802.11 protokolo bevielio rysio kanalu optimizavimo modelio efektyvumo tyrimas." Retrieved from 2010 Kaunas University of Technology, Faculty of Telecommunications and Electronics 24 Jul. MLA style: "An efficiency optimization model for 802.11 wireless communication channels/802.11 protokolo bevielio rysio kanalu optimizavimo modelio efektyvumo tyrimas." The Free Library.
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