COMPARSION BETWEEN CBR PROTOCOL AND LEACH PROTOCOL USING NS2 AND TDMA
Abstract
Technological advances in
communications and computation have enabled
the development of low-cost, low-power, small in
size, and multifunctional sensor nodes in a
wireless sensor network. Since the radio
transmission and reception consumes a lot of
energy, one of the important issues in wireless
sensor network (WSN) is the inherent limited
battery power within network sensor nodes. In
addition to maximizing the lifespan of sensor
nodes, it is preferable to distribute the energy
dissipated throughout the wireless sensor
network in order to maximize overall network
performance. Packet loss that occurs due to
mobility of the sensor nodes is one of main
challenge in Wireless Sensor Network (WSN)
and it comes in parallel with energy
consumption. CBRP can change TDMA
scheduling adaptively according to traffic and
mobility characteristics. In this protocol the
cluster head receive data from not only its
member during the TDMA allocated time slot
but also other sensor nodes that just enter the
cluster when it has free timeslots, each cluster
head takes turn to be the free cluster head in the
network. The performance of proposed CBR
protocol is evaluated using NS-2 and compared
with LEACH protocol
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