具有数据碰撞的认知无线网络能量效率分析

2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2014-12-22 DOI:10.1109/WCSP.2014.6992212

Lei Wang, Haitao Xue, Guoping Jiang, B. Zheng, Jingwu Cui

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引用次数: 2

摘要

在认知无线网络的实际应用中，如何提高能量受限的认知用户的能量效率显得尤为重要。本文从认知无线网络能量效率最大化的角度出发，考虑了认知用户在传输数据时，主用户突然出现导致数据碰撞的情况。在此基础上，建立了基于帧周期和感知时间的能效优化数学模型。对优化问题进行了理论分析，并通过计算机仿真进行了验证。理论分析和计算机仿真结果表明，随着感知时间和帧周期的增加，能量效率先增加后降低，并且存在最优感知时间和帧周期的最优组合以实现能量效率的最大化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Energy efficiency analysis for cognitive radio network with data collision

In the practical application of cognitive radio network, it is especially important to improve the energy efficiency for those energy-constrained cognitive users. From the perspective of maximizing the energy efficiency in cognitive radio networks, this paper considers the case that the sudden appearance of the primary user can lead to data collision when the cognitive user is transmitting data. Then the optimization mathematical model of energy efficiency is given by using frame period and sensing time. The optimization problem is analyzed theoretically and verified by computer simulations. The theoretical analysis and computer simulation results show that the energy efficiency firstly increases and then decreases with the increase of the sensing time as well as the frame period, and there is an optimal combination of optimal sensing time and frame period to maximize the energy efficiency.

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来源期刊

2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)

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