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arXiv 1304.0140cs.NIcs.ITmath.ITmath.OC
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感知频谱共享系统中的分组中继控制

Packet Relaying Control in Sensing-based Spectrum Sharing Systems

F. Foukalas, T. Khattab, H. V. Poor

摘要:

认知中继已经被引入机会频谱接入系统,通过该系统,每当主链路面临中断条件时,次节点转发主分组。对于频谱共享系统,认知中继的参数化的干扰功率约束水平上施加的次要用户的发射功率。对于基于感测的频谱共享,检测概率也涉及分组中继控制。本文考虑这两个参数的选择,以最大限度地提高从节点的吞吐量在一定的约束条件。分析导致一个马尔可夫决策过程,使用动态规划方法。该问题使用值迭代来解决。最后,突出所得到的最优控制的结构特性。

英文摘要:

Cognitive relaying has been introduced for opportunistic spectrum access systems by which a secondary node forwards primary packets whenever the primary link faces an outage condition. For spectrum sharing systems, cognitive relaying is parametrized by an interference power constraint level imposed on the transmit power of the secondary user. For sensing-based spectrum sharing, the probability of detection is also involved in packet relaying control. This paper considers the choice of these two parameters so as to maximize the secondary nodes' throughput under certain constraints. The analysis leads to a Markov decision process using dynamic programming approach. The problem is solved using value iteration. Finally, the structural properties of the resulting optimal control are highlighted.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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