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Wireless environment based on the best listener of the network size range

Author: ChenJunYan
Tutor: XuYouYunï¼›LiuJing
School: Shanghai Jiaotong University
Course: Communication and Information System
Keywords: Listener range Network size Cumulative interference model Multi-protocol layer model design Effective packet throughput
CLC: TN92
Type: Master's thesis
Year: 2011
Downloads: 9
Quote: 0
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Abstract


A large number of studies have found that the communication between the node pair in the wireless network to be interested in the same frequency in the network the node pair communication cause interference. This was considered to be part of the background noise in the same frequency signal interference. With the fast development of distributed network and wide application. With a node in the network is more and more, more and more business each node hosted. Especially with the rise of ubiquitous network and the network, a large-scale network gradually attracted people's attention. A significant impact and expand the network scale is the original can ignore interference with cumulative become increasingly clear that serious impact on the network performance of the entire network. Therefore, the interference between the nodes has become one of the biggest challenges in the wireless field. The adjustment node listens range has proven to be one of the effective means to reduce interference between nodes. However, how to determine a suitable range of the listener is still an urgent problem in different network conditions. In this paper, I will discuss the relationship between the listener distributed network range and network size. Listener within the node interference will not occur due to the restriction of the access protocol, it can expand the listener range and control interference; unable to resume at the same time, it also means confined to the access protocol listener within the node channel to improve network throughput by reducing the listener range. Listener the range become balanced mistakenly bit performance and network throughput performance. It also makes reasonable throughput conditions, suppress interference with the practice of the error by adjusting the best listener range, and to become a useful attempt. This article according to the network structure analysis of the distribution of nodes, multi-protocol layer joint control interference model and strategy. The new model will analyze the parameters of each protocol layer in the network architecture, particularly in the access layer protocol framework, analyze the cumulative effect of interference of the listener range for the physical layer, and thus give a network of bit error rate and throughput performance. Comprehensive performance of these networks, and the resulting network packet throughput performance, as the basis of selecting the best listening range of. In this paper, based on the adjustment of the listener the range control interference strategy, its strengths is the ability to import node scale network structure parameters, import business scale through the application layer parameters. Therefore, based on the discussion of this model, take full account of the network size, in line with the realistic background of the current large-scale wireless networks. Herein build accumulation interference model, compared to the existing nodes on the disturbance model, the results of the analysis is more believable. The accumulated value of the model through a summary of the analysis of the actual scene, to get the wireless channel model and the network structure, the addition of each protocol layer parameters, calculated interference outside the scope of the network listener. Cumulative interference with equally affected by the listener range network multiplexing contain each other, making the network performance through the model range and choose the best listener will also be more useful.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications
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