Scenario dependent analysis of wireless networks for QOS metrics
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Abstract
As the new standards are emerging, wireless solutions are covering automation networks under its span. IEEE 802.15.4 is a
standard for low-power, low-cost and short-range wireless networks and its major application fields are building automation, industrial
sensor and actuator networks. It functions generally in the license-free 2.4-GHz scientific, industrial and medical band. This asset makes
the technology easily applicable and also potentially vulnerable to interference by other technologies. There are several mutually existing
scenarios with different network sizes which are gaining popularity in recent years. Theoretically, IEEE 802.15.4 is more suitable for
resource-constraint ad-hoc network because of its low power consumption feature. However, performance of IEEE 802.11 is uncertain as
the transmission power and receiver sensitivity are limited to match the level of IEEE 802.15.4. The focus of this paper is to quantify the
behavior of IEEE 802.11 against IEEE 802.15.4 with the help of AODV routing protocol. Simulation results show that IEEE 802.11
overshadows IEEE 802.15.4 in terms of the packet delivery ratio, routing load and delay when we consider the node density. On the other
hand, the average energy consumed by each node in IEEE 802.11 is lesser than that in IEEE 802.15.4 in both the scenarios. Moreover, the
limited energy condition and transmission range of IEEE 802.11 is far less than that supported by IEEE 802.15.4. This is an economical
setback for IEEE 802.11.
Keywords—AODV, IEEE 802.11, Average End-to-End Delay, PDR, Energy Consumption, Wireless Sensor Networks
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