Calculus
Calculus
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DOI:
10.1007/978-1-4471-0459-9_1
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发表时间:
2020-08
期刊:
影响因子:
--
通讯作者:
Cheng-Shang Chang
中科院分区:
文献类型:
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作者:
Cheng-Shang Chang
In this chapter, we consider a discrete-time system with time indexed byt= 0, 1, 2,… We describe a discrete-time arrival process of a traffic source by a sequence of variablesA≡{A(t),t= 0, 1, 2,…, whereA(t) is the cumulative number of arrivals by timet. We assume that there is no arrival at time 0, i.e.,A(0) = 0, and thatA(t) is increasing, i.e.,A(s) <A(t), for all s < t. Following the terminology in communication networks, we sometimes call an arrival a packet.Packetsare assumed to be of the same size unless otherwise specified.