Description: 有关cognitive radio的内容,对matlab进行的模拟测试,希望对大家有所帮助-the cognitive radio the content of the Matlab simulation tests We hope to help Platform: |
Size: 14336 |
Author:king |
Hits:
Description: 在matlab中实现ofdm中子载波分配,希望对大家有用!-Matlab achieved in neutron OFDM subcarrier allocation, I hope useful for all of us! Platform: |
Size: 1024 |
Author:侯祖磊 |
Hits:
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 |
Hits:
Description: 认知无线电功率控制方面一些重要参考文献，对研究功率控制方面的初学者很有帮助-Cognitive radio power control some important references，the study of power control for beginners is helpful Platform: |
Size: 47017984 |
Author:江雪 |
Hits:
Description: 认知无线电技术检测技术，包括能量检测，周期检测等的仿真及分析-Detection of cognitive radio technologies, including energy detection, the simulation cycle of testing and analysis Platform: |
Size: 474112 |
Author:王颖 |
Hits:
Description: 最新两个月的IEEE Transaction on Signal Processing论文，出自Spincom,U of Minnesota-The most recent Trans.Signal Processing, Aims at network coding and OFDM cognitive radio, originated from Spincom. Platform: |
Size: 1961984 |
Author:高昕 |
Hits:
Description: 针对在无线电监测和认知无线电系统中,信号参数估计这一重要问题,证明了OFDM信号具有循环平稳性的必要条件是加循环前缀或有非矩形脉冲成型,并以线性周期时变变换(LPTV)模型为基础,推导了OFDM信号的循环谱表达式-For radio monitoring and cognitive radio systems, signal parameter estimation of this important issue, the necessary condition for the OFDM signal with cyclostationarity is the cyclic prefix increases or non-rectangular pulse shaping, and Linear Periodically Time-varying transform (LPTV) model, based on the cyclic spectrum of the OFDM signal expression is derived Platform: |
Size: 273408 |
Author:Chaos |
Hits:
Description: 针对无线电监测和认知无线电系统中正交频分复用(OFDM) 信号参数估计这一重要问题,提出了用频域累积法算OFDM 信号的循环自相关函数的数值计算方法.-For radio monitoring and cognitive radio systems, orthogonal frequency division multiplexing (OFDM) signal parameter estimation of this important issue, the accumulation method to count cycle of the OFDM signal in frequency domain autocorrelation function of the numerical method. Platform: |
Size: 151552 |
Author:Chaos |
Hits:
Description: 针对认知无线电系统中正交频分复用( OFDM )信号参数估计这一重要问题, 利用OFDM 信号的循环谱实现了符号周期的盲估计。-For cognitive radio systems, orthogonal frequency division multiplexing (OFDM) signal parameter estimation of this important issue, the cyclic spectrum of the OFDM signal to achieve the blind estimation of symbol period. Platform: |
Size: 300032 |
Author:Chaos |
Hits:
Description: OFDM is one of the best physical-layer candidates
for cognitive radio (CR) systems, but rectangular pulse shaping
gives rise to large spectrum sidelobes and interferes with the
licensed user on the adjacent band. In this paper, an approach
is derived based on the signal continuity to measure the spectral
decay rate of the shaping pulse for OFDM. Platform: |
Size: 442368 |
Author:minal |
Hits:
Description: Spectral Efficiency Analysis in OFDM and
OFDM/OQAM based Cognitive Radio Networks
The future wireless communication is expected to
be able to improve the efficiency of spectrum usage. To solve the challenge of spectrum shortage, an innovative opportunistic spectrum access strategy, called Cognitive Radio (CR) has been proposed. Platform: |
Size: 165888 |
Author:Honaleum |
Hits:
Description: 认知无线电系统中存在载波频偏的OFDM频谱感知技术1001-0548(2013)03-0355-05-OFDM Signal Sensing Scheme for Cognitive Radio in the Presence of Carrier
Frequency Offset. Platform: |
Size: 772096 |
Author:wang |
Hits:
Description: 该程序用于基于认知无线电NC-OFDM系统的仿真，用来计算信号的功率谱密度-The program for the NC-OFDM Cognitive Radio system simulation for calculating the power spectral density of the signal。 Platform: |
Size: 8192 |
Author:zhj |
Hits:
Description: 认知无线电(Cognitive Radio,CR)的概念起源于1999年Joseph Mitolo博士的奠基性工作，其核心思想是CR具有学习能力，能与周围环境交互信息，以感知和利用在该空间的可用频谱，并限制和降低冲突的发生-Cognitive radio (Cognitive Radio, CR) concept originated in 1999, Dr. Joseph Mitolo s groundbreaking work, the core idea is CR with learning ability, can interact with the surrounding environment information to the perception and use of the available spectrum in the space, and to limit and reduce the incidence of conflict Platform: |
Size: 7168 |
Author:刘朝选 |
Hits:
Description: Spectrum Sensing of OFDM signal for Cognitive Radio. Double threshold platform has been used. Autocorrelation of OFDM signal has been used as feature for detection purpose in AWGN channel scenario. Platform: |
Size: 757760 |
Author:IMTIYAZ KHAN |
Hits:
Description: To fully exploit wireless radio resource and, thus,
increase spectrum efficiency, cognitive radios shall sense wire-
less environments and identify interference to allow opportunis-
tic transmissions for secondary systems. Based on Chen et al.
in their work about a terminal architecture for cognitive radio
networks, by further obtaining transmission information with a
rate–distance nature that is extended an overlay concept,
secondary systems can even leverage busy duration of primary
systems to enhance the opportunity to use spectrum under de-
rived tolerable interference to the primary orthogonal frequency-
division multiple access (OFDMA) system.-To fully exploit wireless radio resource and, thus,
increase spectrum efficiency, cognitive radios shall sense wire-
less environments and identify interference to allow opportunis-
tic transmissions for secondary systems. Based on Chen et al.
in their work about a terminal architecture for cognitive radio
networks, by further obtaining transmission information with a
rate–distance nature that is extended an overlay concept,
secondary systems can even leverage busy duration of primary
systems to enhance the opportunity to use spectrum under de-
rived tolerable interference to the primary orthogonal frequency-
division multiple access (OFDMA) system. Platform: |
Size: 970752 |
Author:Donna Loudoe |
Hits:
Search - cognitive radio of OFDM