Description: 认知无线电能有效缓解无线电频谱资源匮乏问题，正交频分复用（OFDM）非常适合认知无线电系统。动态频谱资源分配是认知系统的一项重要功能。本文的目标就是最小化成本函数，这个函数考虑到主用户以及次用户的干扰功率。-Cognitive radio (CR) is a promising concept for improving the utilization of scarce radio spectrum resources. Orthogonal frequency division multiplexing (OFDM) is regarded as a technology which is well-matched for CR systems. Dynamic resource allocation is an important task in such systems. A novel resource allocation algorithm for multiuser OFDM cognitive radio system is presented in this paper. The objective is to minimize a cost function which takes into account the interference
power experienced by the primary user as well as the base station transmit power for secondary users given minimum bit rate requirements for each secondary user. Platform: |
Size: 201728 |
Author:洪波 |
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Description: 动态信道分配的一种完全共享方案，所有用户和业务可以根据实际情况动态使用系统的时隙和频率资源-Dynamic channel allocation in a complete sharing scheme, all users and businesses can use the system according to the actual situation of dynamic time slot and frequency resources Platform: |
Size: 1024 |
Author:高婷 |
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Description: 模拟内存换页算法，包括FIFO（先进先出first in first out）,OPT(动态分配optimal),LRU(最近不使用latest use recently),LFR(最近最低频率lowest frequency recently),NUR(最近不使用no used recently）-Analog memory paging algorithms, including FIFO (first in first out first in first out), OPT (dynamic allocation optimal), LRU (recently does not use latest use recently), LFR (the lowest frequency of the recent lowest frequency recently), NUR (do not use the recent no used recently) Platform: |
Size: 1024 |
Author:linqingyang |
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Description: 硕士论文，设计了基于RFID的集装箱电子锁并讨论了电子标签的防碰撞机制。比较了目前常用的电子标签常用的防碰撞方法。在Aloha算法和时间片Aloha算法的基础上加以改进，可自动获取读头读取范围的标签ID清单并动态分配时间片给电子标签。在该算法
中融入系统低频唤醒和定时唤醒的特点，以降低电子标签的功耗。-Master' s thesis, the design of container-based RFID electronic lock and discussed the e-tag anti-collision mechanism. Comparison of the current commonly used electronic tags commonly used anti-collision method. In the Aloha algorithm and time slot based on the Aloha algorithm to be improved, can automatically obtain the reader to read the label ID range list and dynamic allocation of time slices to the electronic tag. In the algorithm integrated into the system wake-up frequency and timing characteristics of wake-up in order to reduce the power consumption of electronic tags. Platform: |
Size: 2340864 |
Author:xqzhang |
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Description: 采用博弈论对认知无线电中的分布式动态频率选择和功率分配策略进行建模分析，通过建立合作来协调认知节点间的行为，从而提高分布式决策算法的性能。-Game Theory Modeling and Analysis of Distributed Dynamic Frequency Selection in cognitive radio and power allocation strategy to coordinate, through the establishment of cooperation between the behavior of cognitive nodes, thereby improving the performance of distributed decision making algorithms. Platform: |
Size: 891904 |
Author:石笑天 |
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Description: Our team has developed a Matlab simulation for OFDMA networks. We propose a dynamic FFR mechanism that selects the optimal frequency allocation and inner cell radius based on the cell total throughput and a custom metric which is called user satisfaction (US). In detail, the mechanism divides the cell into two regions (inner and outer). For each potential frequency allocation (FA), the mechanism calculates the per-user throughput, the cell total throughput and US. This procedure is repeated for successive inner cell radius. Afterwards, the mechanism selects the optimal FFR scheme that maximizes the cell total throughput and US. Platform: |
Size: 4096 |
Author:akbar |
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Description: Dynamic Frequency Allocation Scheme of Mobile Networks using Priority Assignment Technique
:Cognitive Radio + Platform: |
Size: 760832 |
Author:Suman |
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