∗ # ∗ ∗ #

∗ #

2014 IEEE INFOCOM Workshops: 2014 IEEE INFOCOM Workshop on Green Cognitive Communications and Computing Networks

978-1-4799-3088-3/14/$31.00 ©2014 IEEE 694

nm n � m

m

Rth

i

ri(t) =

⎧⎨⎩

Vj

|si(t)|+1 |si(t)|+ 1 ≤Vj

Rth

Rthe−β

((|si(t)|+1)Rth−Vj

Vj

),

Vj j si(t)i t

gi i

gi = rii

gi =∑n

k=1 rk(t)i

i

i)

ii)

i

Di(t) =

n∑k=1

rk (sk(t))−

n∑k=1,k �=i

rk (sk(t)− {i})

Di

ri G(t) =∑n

k=1 rk(t)Di

Di ii Di

Di(t) = (|si(t)|+ 1) ri (si(t))− |si(t)| ri (si(t)− {i})

n

m

l l

2014 IEEE INFOCOM Workshops: 2014 IEEE INFOCOM Workshop on Green Cognitive Communications and Computing Networks

695

n = 500 m =

10 V = 20 R = 2 β = 2

g(j)i (t)

i jth

Bj

Bj

i t

P(j)i (t)

Ri(t) =

ml∑j=1

Bja(j)i log2

(1 +

g(j)i (t)P

(j)i (t)

N0Bj

)

a(j)i

a(j)i = 1 i j a

(j)i = 0

N0

i tri(t)

ri(t) =

{Ri(t) Ri(t) ≥ Rth

Rthe−β

(RthRi(t)

−1)

•

gi(t) = ri(t)

•

gi(t) = G(t) �

n∑k=1

rk(t)

•

gi(t) = Di(t)

Di(t)

max{a

(j)i

,P(j)i

}

n∑i=1

ri(t)

0 ≤ P(j)i ≤ P

(j),max

i i ∈ {1...n}, j ∈ {1...ml}ml∑j=1

a(j)i P

(j)i ≤ Pmax

i i ∈ {1...n}

0 ≤

n∑i=1

a(j)i ≤ 1 j ∈ {1...ml}

1 ≤

ml∑j=1

a(j)i ≤ mmax

i i ∈ {1...n}

Pmaxi i P

(j),max

i

j immax

i i

2014 IEEE INFOCOM Workshops: 2014 IEEE INFOCOM Workshop on Green Cognitive Communications and Computing Networks

696

ml×m

mmaxi∑j=0

(mlj

)Lji Li

iml∑j=0

(mlj

)Lji = (Li+1)ml mmax

i ≤ ml

Li

∑mmaxi

j=0

(mlj

)2ml mmax

i ≤ ml∑ml

j=0

(mlj

)= 2ml

{a(j)i }

P(j)i i

max{P

(j)i

}a(j)i

=1

ri(t)

0 ≤ P(j)i ≤ P

(j),max

i j ∈ {1...ml/a(j)i = 1}

ml∑j=1

a(j)i P

(j)i ≤ Pmax

i

ri(t) Ri(t)

n = 100

d = 1

1dη

η = 3 m = 10 l = 50

Pmaxi = 20

Di

V(j)i

j i V(j)i

Pi(j) = Pmaxi

2014 IEEE INFOCOM Workshops: 2014 IEEE INFOCOM Workshop on Green Cognitive Communications and Computing Networks

697

gi G Di

2014 IEEE INFOCOM Workshops: 2014 IEEE INFOCOM Workshop on Green Cognitive Communications and Computing Networks

698

2014 IEEE INFOCOM Workshops: 2014 IEEE INFOCOM Workshop on Green Cognitive Communications and Computing Networks

699