RSS
Twitter
Facebook
IEEE standards as 802.11a, b, and
g provide a wide range of data rates: 54,48,36,24,18,12,9 and 6 mb/s. this
range reflects the trade off between the transmission range and data rate intrinsic
in a wireless communication channel. An accurate energy model is crucial for
the development of energy efficient clustering and routing protocols. The
energy consumption, E for all components of the watts is summarized as
E=theta+ηwdn
Where Ѳ is the distance
independent term that accounts for the overhead of the radio electronics and
digital processing, and ηwd^n is the distance dependent term in which η represents
the amplifier inefficiency factor w is the free space path loss d is the
distance and n in the environmental factor. Based on an environmental
condition, n can be any number between 2 and 4 and η specifies the inefficiency
of the transmitter when generating maximum power wd^n at the antenna. Clearly
the distance dependent portal of total energy consumption depends on the
real-world Tranreceiver parameters, Ѳ, η and the path attenuation wd^n. if the
value of Ѳ overshadows ηwd^n, the reduction in the transmission distances
through the use of multihop communication is not effective.
0 comments