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Energy Efficient Cooperative Wireless Communication and Networks
book

Energy Efficient Cooperative Wireless Communication and Networks

by Zhengguo Sheng, Chi Harold Liu
November 2014
Intermediate to advanced content levelIntermediate to advanced
221 pages
6h 17m
English
CRC Press
Content preview from Energy Efficient Cooperative Wireless Communication and Networks
108 Energy-Efficient Cooperative Wireless Communication and Networks
Denoted by LC
CL
, the link cost of the cooperative link is
LC
CL
=
N
i=1
P
i
=1
.
N
i=1
1
LC
i,D
. (8.8)
We assume that the packet size is a bits. Denote η
S
i
to be the required
energy for
N
S
and R
i
to transmit a packet, respectively. Obviously we have
η
S
= LC
BL
×
a
W × log
2
(1 + SNR
min
)
, (8.9)
η
i
= P
i
×
a
W × log
2
(1 + SNR
min
)
. (8.10)
In Khandani et al. [54], all relays participate in cooperative transmis-
sion and relays
R
i
transmit with power P
i
given by (8.3). This s cheme is
not suitable for battery-powered ad hoc or sensor networks. According to
(8.10), good-channel-condition relays (i.e., those with
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Publisher Resources

ISBN: 9781482238211