Description: — Performance comparison of multiuser OFDM-TDMA and
OFDMA systems by considering physical and link cross-layer behavior
is conducted in this work. We provide a new framework for performance
evaluation that centers on “ scheduling” with several different
subcarrier/bit allocation schemes. The performance metrics include: the
bit rate, the bit error rate (BER), packet throughput and delay. The
instantaneous channel conditions of users are assumed to be available
at the base station, which can be achieved by channel estimation at the
mobile terminal (MT), and then fed back to the base station through
a control channel. To perform the link layer comparison, we model the
Rayleigh fading channel with a nite-state Markov chain, and adopt the
M/G/1 queueing model as the analytical tool. Computer simulation is
performed to verify conducted analytical results-— Performance comparison of multiuser OFDM-TDMA and
OFDMA systems by considering physical and link cross-layer behavior
is conducted in this work. We provide a new framework for performance
evaluation that centers on “ scheduling” with several different
subcarrier/bit allocation schemes. The performance metrics include: the
bit rate, the bit error rate (BER), packet throughput and delay. The
instantaneous channel conditions of users are assumed to be available
at the base station, which can be achieved by channel estimation at the
mobile terminal (MT), and then fed back to the base station through
a control channel. To perform the link layer comparison, we model the
Rayleigh fading channel with a nite-state Markov chain, and adopt the
M/G/1 queueing model as the analytical tool. Computer simulation is
performed to verify conducted analytical results Platform: |
Size: 166912 |
Author:alaa |
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Description: OFDM/Simulink matlab procedure, at different signal to noise ratio, the system compares the SER and BER. The use of Rayleigh fading channel. Platform: |
Size: 10240 |
Author:falai |
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Description: This matlab code calculates a bit error rate of OFDM system over a flequency-selective Rayleigh fading channel. Platform: |
Size: 903168 |
Author:Water |
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Description: Rayleigh fading channel with Alamouti Space Time Block Coding
Two transmit antenna, Two Receive antenna
- Rayleigh fading channel with Alamouti Space Time Block Coding
Two transmit antenna, Two Receive antenna
Platform: |
Size: 4096 |
Author:sourov |
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Description: OFDM : Orthogonal Frequency Division Multiplexing (OFDM) is the fourth-generation mobile communication core technology. The article briefly introduces the basic principles of OFDM, focus on the ideal synchronous circumstances, Protection slot (counted ac cording) and different channel estimation method in Gaussian channel and multi-path Rayleigh fading channels of OFDM system performance Platform: |
Size: 1024 |
Author:kanniyappan/AIHT |
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Description: 重点研究
了低信噪比﹑多径瑞利衰落信道条件下，基于高阶累积量的OFDM信号盲识别技
术。提出了利用奇数阶累积量区分OFDM信号与单载波信号的方法，并对基于三
阶和五阶累积量的算法进行了仿真分析。
-﹑ Focus on the low SNR multipath Rayleigh fading channel conditions, based on cumulant OFDM signal blind identification technology. Made a distinction between the use of odd-order cumulants single-carrier OFDM signal with the signal approach, and based on the cumulative amount of third-order and fifth-order algorithm for the simulation. Platform: |
Size: 1210368 |
Author:赵亮 |
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Description: 这是一个在瑞利信道下，用训练符号进行信道估计的OFDM调制解调程序-This is a in Rayleigh fading, the training symbols to estimate the channel OFDM modulation and demodulation process Platform: |
Size: 9216 |
Author:田文杰 |
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Description: OFDM系统的最大似然同步（ML）算法的程序，信道模型为带有多普勒频移的瑞利衰落信道。-OFDM system maximum likelihood synchronization procedures (ML) algorithm, the channel model with the Doppler shift of the Rayleigh fading channel. Platform: |
Size: 1024 |
Author:zhangwei |
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Description: In this paper, we present and analyze efficient frame synchronization and frequency offset compensation scheme with ternary sequences for an orthogonal frequency division multiplexing (OFDM) system in Rayleigh fading channels. Frame
synchronization is an essential procedure for normal operation of
the OFDM system because of sensitivity to synchronization errors. And when there are frequency offsets in OFDM frame, the loss of
orthogonality occurs and the interference problem among several subcarriers is introduced. These fact leads to the requirement for joint implementation of the frame synchronization and frequency offset compensation. Platform: |
Size: 1581056 |
Author:Joel |
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Description: A COMPARATIVE PERFORMANCE ANALYSIS OF STBC-OFDM SYSTEMS UNDER RAYLEIGH FADING ENVIRONMENTS Platform: |
Size: 689152 |
Author:paosalinas |
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Search - Rayleigh fading ofdm