Transcript
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    Shyam Sundar Sah

    (M.Phil.Student)

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    About my paper Example of voice and data transmission

    Delay sensitive

    Loss sensitive How the queue of data and voice formed

    Problem:

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    BS : Base station VCT : Virtual connection tree

    MH : Mobile handset

    VCA : Virtual connection area QoS : Quality of service

    : Arrival rate

    H : hand over calls

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    :Exponential call duration of mean value C : Total radio channels :Probability of new call blocked by the

    tree based admission control.

    :Probability of new call blocked by the cellbased admission control.

    7 :The tree contain seven cells and the treenew call arrival rate.

    :The rate of handover calls in tree based :Handover blocking probability of data in

    a cell

    1

    pc

    pt

    phbd

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    :The arrival rate :call releasing rate

    :The probability have occupied the i state

    : Arrival rate of call in cell based wirelessadmission control

    :Rate of hand over calls into a cell basedwireless admission control

    chc

    c

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    :Probability of occupied radio channels upto state i in the cell.

    :New call blocking probability of celladmission control

    : handover blocking probability of call inthecell

    :forced termination probability of call

    :forced termination probability of data

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    ...

    The arrival rate of calls and data is given by

    A call in tree is released with rate

    N+1N210 N-1 7c-1 7c

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    (1)

    (2)

    (3)

    Balance equations from above transition diagram are :

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    (4)

    (5)

    (6)

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    (7)

    (8)

    (9)

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    From equation (1)

    From equation (2)

    From equation (3)

    (10)

    (11)

    (12)

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    From equation (4)

    From equation (5)

    From equation (6)

    (13)

    (14)

    (15)

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    From equation(7)

    From equation(8)

    From equation(9)

    (16)

    (17)

    (18)

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    The probability that calls have occupied theith state is

    Where

    Or,

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    (19)

    (20)

    (21)

    ..0 1 cm c-1m+1

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    (22)

    (23)

    (24)

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    (26)

    (25)

    (27)

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    from equation(19)

    (29)

    (28)

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    From equation (20)

    From equation (21)

    From equation (22)

    From equation (23)

    (30)

    ...(31)

    (32)

    (33)

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    From equation (24)

    From equation (25)

    From equation (26)

    From equation (27)

    (34)

    (35)

    (36)

    (37)

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    The probability that calls and data have occupiedthe ith state is

    We know that

    or

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    The arrival rate

    Rate of handover calls and data into a cellare

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    The call arrival rate of queue model is

    The release rate in queue model is

    At last the probability of new call blocked by treebased admission control is

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    and the hand over probability for calls and dataare:

    and

    the forced termination probability of call andhandover data are:

    and

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    Particular case:1.When =o and =o our model

    reduces to the model given by Ionnous

    et al. [2],and Louvros et al. [6]

    chd thd

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    1. H.Wu, L.Li, B.Li, Y.Li, I.Chlamatae and B.Li,Onhandoff performance for an intergratedvoice/data cellular system,IEEE,(2002),2180-2184

    2. K.Ioannou,J.Pylarionos,S.Louvros,I.Panoutspoulus,I.Kougias,A.Grampis and S.Kotsopoulus,Two layer call admission control analysis inmicrocellular wireless network, proceeding

    of the 4rth WSEAS international conferenceon information security communications andcomputers, Tenerife, Spain, pp 87-90,(2005)

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    3.M.Kopeetsky, Mathematical modeling of thewireless communication network,(9)(1)(2005),32-39

    4.J.Tsiligaridis and R.Acharya, A tree based data

    mining prediction scheme for wireless cellularnetwork, proceedings of the internationalconference on information technology (2005)

    5.M.S.Hossain, M.I.Islam and M.R.A.Khandaker, A

    comparative study of cell based and tree basedcall admission control for mobile cellularnetwork,(1)(1)(2007)


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