Abstract
The wireless sensor network is a new hot spot in the field of wireless network. Compared with other network technology, wireless sensor network has less communication protocols, mainly including Wireless HART, ISA100.11a, IEEE1451, and ZigBee/IEEE802.15.4. IEEE802.15.4 was designed for short-range, low-complexity, low-power, low-rate and low-cost wireless network which provides two-way wireless communication technology [1]. In this paper, the performance of IEEE 802.15.4 is analyzed based on OPNET simulator. The simulation result indicates the influence of ACK mechanism and different network load on the system performance,i.e. end-to-end delay, packet reception ratio and throughout of node, which provides an important theoretical basis for the construction of actual network.
Highlights
As wireless communication, integrated circuits, sensor and micro electromechanical system, i.e. MEMS, are rapidly developing, it is possible to the mass production of tiny sensor nodes with the functions of wireless communication, data acquisition and processing and collaboration [2]
The purpose of this paper is to investigate the performance of IEEE802.15.4 in different network requirements
IEEE 802.15.4 was designed to meet the need for a lowcost and low-power wireless network
Summary
As wireless communication, integrated circuits, sensor and micro electromechanical system, i.e. MEMS, are rapidly developing, it is possible to the mass production of tiny sensor nodes with the functions of wireless communication, data acquisition and processing and collaboration [2]. OPNET employs object modeling method and graphical editor, providing comprehensive simulation development environment for the communication network and modeling of a distributed system. OPNET provides three modeling mechanism: the bottom is the process model, implementing the algorithm agreement; the middle is the node model, employing process model to implement the corresponding equipment func-. Tion; the top is the network model, employing node model to construct reality network topology structure. The purpose of this paper is to investigate the performance of IEEE802.15.4 in different network requirements. We use OPNET to analyze different scenarios, i.e. whether to adopt an ACK mechanism and different network load. According to the simulation results we analyze the performance of different parameters, including different mode and load condition. Based on the simulation we can get a suitable solution for the network performance. The physical and medium access control layers have completed the standardized
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