Ω
_{B}

The set of the BBU

Ω
_{OADM}

The set of the OADMs

Ω
_{RRU}

The set of the RRUs

Ω
_{TP}

The set of the TPs

T

The number of OADMs in the network

M

The number of RRUs in the network

N

The number of TPs in the network

d
_{
ij
}

The distance between node i and node j

P

The maximal transmit power of a RRU

ξ

The average normalized thermal noise in AOI

α

The path loss exponent

s
_{0}

The minimal SNR requirement for each TP

A

The location incidence vector, A = (a
_{
m
})_{1 × M
}

B

The location incidence vector, B = (b
_{
t
})_{1 × T
}

Q

A TP coverage incidence vector, Q = (q
_{
n
})_{1 × N
}

Z

RRUTP association matrix Z = (z
_{
mn
})_{
M × N
}

E

BBUOADMRRU association matrix, E = (e
_{
ij
})_{(T + 1) × (M + T)}

D
_{MAX}

The maximal distance of OMDRRU that can be deployed in the network

H
^{K}

OADM_{
k
} − BBU flow association matrix \( {H}^K={\left({h}_{ij}^k\right)}_{\left(1+T\right)\times \left(T+M\right)} \)

G
^{K}

BBU − OADM_{
k
} flow association matrix \( {G}^K={\left({g}_{ij}^k\right)}_{\left(1+T\right)\times \left(T+M\right)} \)
