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Analysis of Multi-probability Joint Control Multi-channel Random-access MAC Protocol for Wireless Sensor Networks

Author: HuangZuoZuo
Tutor: ZhaoDongFeng；ZhouLiHua
School: Yunnan University
Course: Computer Software and Theory
Keywords: Wireless sensor networks Random Multiple Access Multi-channel Multi- joint control probability
CLC: TN915.04
Type: Master's thesis
Year: 2010
Downloads: 46
Quote: 4
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Abstract


Wireless sensor networks (Wireless Sensor Network, WSN) is composed of many sets sensing capability, computing and communication capabilities in one of the limited resources (computing, storage capacity, and energy aspects of constrained) embedded nodes through wireless communication interoperability even a network. It combines microelectronic technology, embedded computing technology, modern networking and wireless communication technology, distributed information processing technology and other advanced technologies. Wireless sensor networks, each node can collaborate in real-time monitoring, sensing and collecting various monitoring network coverage area objects, and sent via wireless communication to the observer. Wireless sensor network technology as the information age a very important emerging technology that has become a world-wide research focus. Wireless sensor network applications has a strong correlation, that is, for different applications, need to adopt different strategies (including hardware platform environment, communication protocols, etc.), in order to achieve the development of wireless sensor network applications can be a good fit purposes. With the progress of the times, in all aspects of wireless sensor networks applications will be increased, some of the existing agreements have to meet these requirements can not be good, so need to introduce some of the new agreement. In this paper, the existing random multiple access technology, multi-channel technology and contention-based MAC protocol for wireless sensor networks based on the analysis of a certain view of the current mainstream sensor network MAC protocol in the network load is high performance degradation deficiencies , proposed a new MAC protocol for wireless sensor networks - the probability of joint control of multiple random multiple access wireless sensor network MAC protocol for wireless sensor networks in order to further improve the load at higher channel utilization, reduce energy consumption, and to meet the multi- kind of priority services quality of service requirements. The agreement applies to long-term work at higher load conditions as well as a large amount of bursty data transmission in wireless sensor networks. Protocol control thought is: the channel is busy during the segmented control using two probabilities P? Detection control method, information about packet transmission packet transmission time period is divided into \Send Time \channel packets arriving during idle, press P? adhere strategy with probability p1 for transmission. Through different combinations of the three selection probability value to ensure that the system can have different optimum performance under load, and increases the flexibility of control. Protocol introduces a multi-channel mechanism, in accordance with business priorities, the higher the allowed number of channels more, taking into account the different priorities fairness principle, each of the priority business of the channel occupancy were allocated to meet the high-priority business high QoS requirements, but also to ensure the fairness of the system. After this analysis method using the average cycle modeling protocol analysis, the system throughput, throughput of each priority level, the average transmission delay, average energy consumption per unit time network performance parameters such mathematical expressions, and the agreement performance evaluation of computer simulation and analysis. Experimental results show that the protocol control, the system has a high quality of service (QoS). Finally, the control protocol for wireless sensor networks in GAINZ development platform implementation are introduced and analyzed, and protocol control procedures carried out experimental tests.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication network > General issues > Communication protocols, communication protocols
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