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Description: (书)现代通信系统使用MATLAB第三章-ALLIANCES is a recently proposed cooperative random access
protocol for wireless networks. In this paper we modify the
original model to include user location information. We also
derive pair-wise error probability (PEP) under Rayleigh flat
fading channel and a power-law attenuation environment.
Based on the PEP analysis we propose an optimal relay
selection scheme, which achieves significant throughput gains as
compared to the random relay selection scheme in the original
ALLIANCES.
Platform: |
Size: 20480 |
Author: 史志举 |
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Description: Cooperative communication_power control
a) Generate random binary sequence of +1’s and -1’s.
(b) Given different Power to the source and the relay as well
(c) Multiply the symbols with the channel and then add white Gaussian noise.
(d) At any receiver(relay or destination), equalize (divide) the received symbols with the known channel
(e) Perform hard-decision-decoding and count the bit errors
(f) Plot the power given to both source(Ps) and relay(Pr) with both SNR and BER
-Cooperative communication_power control
a) Generate random binary sequence of+1’s and-1’s.
(b) Given different Power to the source and the relay as well
(c) Multiply the symbols with the channel and then add white Gaussian noise.
(d) At any receiver(relay or destination), equalize (divide) the received symbols with the known channel
(e) Perform hard-decision-decoding and count the bit errors
(f) Plot the power given to both source(Ps) and relay(Pr) with both SNR and BER
Platform: |
Size: 1024 |
Author: tafa |
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Description: This paper deals with the following issue in space time block coding (STBC) design: over a time selective channel,which scheme performs better, orthogonal STBC (O-STBC) or non-orthogonal STBC (NO-STBC)? It is shown that under time-selectiveness, once the vehicle speed has risen above certain value, NO-STBC always outperforms O-STBC - across the whole SNR range. Also, considering that all the existing NO-STBC schemes have been investigated under quasi-static channels only, a new simple receiver was derived for the NO-STBC system under time-selective channels.
Platform: |
Size: 201728 |
Author: hela chaieb |
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Description: amplify and farward : code in mtalab that produce figures of BER and SNR for amplify and farxard relay
Platform: |
Size: 1024 |
Author: saida |
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Description: Opportunistic Large Array 的MATLAB 模拟器.
Object oriented
Event Based
无线广播
支持OLA
累积Relay重发信号以达到最佳解码效果
节点位置可随机或以网格生成
可控制调变方式
独立节点间无线传输信道模型
可调随机生成信噪比范围
生成显示各节点位置图
生成各节点接收所需OLA副本数量图
生成各节点误码率图
生成各节点HOP-COUNT图
生成各节点成功接收SYMBOL数量图
以main.m打开运行-Opportunistic Large Array Simulator in MATLAB.
Object oriented
Event Based
Wireless broadcast
Support OLA
Accumulate the signal re-transmitted from relay to maximize decoding performance
Position of nodes can be randomly or grid based initialized
Modulation methods can be changed
Independent node-to-node wireless transmission channel model
Randomly generate noise for each channel with limited SNR range
Generate nodes position diagram
Generate nodes diagram for required copies of OLA symbol to decode
Generate nodes diagram for BER
Generate nodes diagram for hop-count
Generate nodes diagram for successful decoded symbols
Run with main.m
Platform: |
Size: 20480 |
Author: Felix |
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