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Efficient-BER-computation-of-LDPC-coded-SC_MRC-sy
Abstract—Selection combining cascaded with maximum-ratio
combining (SC/MRC), which is particularly useful when site
diversity is available, combined with low-density parity-check
(LDPC) codes is able to combat the effects of fading. The biterror
rate (BER) expressions of uncoded SC/MRC and SC/MRC
with LDPC codes over an independent and identically distributed
Rayleigh-fading channel are derived based on the Gaussian
approximation approach. These expressions are also applicable
to the selection combining and maximum-ratio combining as
special cases. The derived expressions are in good agreement
with simulation results and approach the density evolution (DE)
thresholds. These expressions are able to achieve a significant
reduction in computational time with a reasonable accuracy for
analyzing the BER performance as compared to simulations and
DE.
- 2015-05-26 13:07:18下载
- 积分：1
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蓝牙bluetooth
单片机+串口+蓝牙通讯，手机通过单片机与电脑通讯。(SCM + serial port + Bluetooth communication, mobile phone communicate with computer through MCU.)
- 2018-06-14 21:27:34下载
- 积分：1
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avrGCC
说明： avr单片机GCC程序设计说明书~~大家都来下载吧，有利于avr单片机的学习。。。(avr microcontroller GCC program design specifications ~ ~ we are all to download it, avr microcontroller is conducive to learning. . .)
- 2009-08-27 10:40:39下载
- 积分：1
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NTC-SHOW-
一个利用MSP430单片机采集NTC温度并在四位数码管上显示的程序，仿照Anduino内核格式，包含一位差值算法(A collection NTC temperature using the MSP430 microcontroller and four digital tube display program, modeled Anduino kernel formats, including a difference algorithm)
- 2013-10-18 11:19:42下载
- 积分：1
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Code
说明： 设计一个正弦信号发生器，使用凌阳公司的16位单片机SPCE061A作为中央控制器，结合DDS芯片AD9850，产生0～15MHz频率可调的正弦信号,正弦信号频率设定值可断电保存；使用宽频放大技术，在50Ω负载电阻上使1K～10MHz范围内的正弦信号输出电压幅度VP-P=6V±1V；产生载波频率可设定的FM和AM信号；调制信号为1KHz的正弦波，调制信号的产生采用DDS技术，由CPLD和Flash ROM加上DAC进行直接数字合成；二进制基带序列码由CPLD产生，在100KHz固定载波频率下进行数字键控，产生ASK，PSK信号。(Design of a sinusoidal signal generator, the use of Sunplus 16-bit MCU SPCE061A as the central controller, combined with DDS chip AD9850, have adjustable frequencies 0 ~ 15MHz sinusoidal signal, sinusoidal signal frequency settings can be stored power using broadband amplification, in a 50Ω load resistor to 1K ~ 10MHz sinusoidal signal within the output voltage amplitude VP-P = 6V ± 1V generating the carrier frequency of the FM and AM can be set signal 1KHz sine wave modulation signal, modulated signal generation using DDS technology, coupled by the CPLD and Flash ROM DAC for direct digital synthesis binary baseband sequence code generated by the CPLD in a fixed carrier frequency 100KHz digital keying, resulting in ASK, PSK signals.)
- 2011-02-22 12:12:06下载
- 积分：1
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CF_card
说明： 一个关于CF_Card的例子程序，值得学习(CF_Card example of a procedure, it is worth learning)
- 2009-08-13 23:12:41下载
- 积分：1
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LED
dspic30f4011单片机按键控制LED与UART通信(dspic30f4011 microcontroller buttons to control the LED and UART communication)
- 2021-02-23 18:19:40下载
- 积分：1
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lp3965
1.5A Fast Ultra Low Dropout Linear Regulators
- 2010-07-08 17:56:29下载
- 积分：1
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STM32103制作的数控电源源代码
说明： 用STM32103单片机，采用数码管显示电流、电压的数控电源。对学习STM32单片机编程和DIY数控电源很有实用价值。(With STM32103 single chip microcomputer, digital tube is used to display current and voltage. It is very useful for learning STM32 single chip computer programming and DIY numerical control power supply.)
- 2020-03-10 22:21:20下载
- 积分：1
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SD卡2.0协议
SD卡2.0协议的详细资料，可用与SPI使用(The details of the SD card 2.0 protocol can be used with SPI)
- 2017-07-31 17:13:52下载
- 积分：1
