Wireless sensor network is a large web of sensor
devices and a gateway (to send information globally on internet)
which is commonly known as sink. Sensor nodes make use of
802.15.4 physical and MAC layer in which CSMACCA
technique is used but their small batteries which are difficult to
recharge in harsh environments creates a problem. Sensor nodes
limited energy and memory are important factors to be worked
upon. Energy consumption rate increases highly if all sensor
nodes send data individually to the base station which reduces
survival time of node. Lifetime of the system can be increased by
minimizing the energy consumption of network. Two different
protocols named LEACH and PEGIS solve the network lifetime
problem by minimizing the energy used for transmission in a
network. In this paper different energy efficiency based protocols
TBEEP (Tier Based Energy Efficient Protocol) and CBEEP
(cluster Based energy efficient protocol) are proposed. In
TBEEP, nodes are divided into three different areas depending
upon their distance from Base station, commonly known as tires.
Energy is distributed homogeneously in a network among all
sensor nodes and minimum spanning tree is generated. After
that, a head node is chosen from each tier based on the maximum
energy that can send sensed aggregated data to the Base station.
In CBEEP, relay nodes which are FFD (Fully Functional Device)
are treated as cluster head which will perform the job (sending
data to the base station) through other relay nodes which are
closer to Base station. In this paper, simulation results calculate
lifetime of a network and energy consumed and results are
compared between the proposed protocols and LEACH using
random and uniform deployment.