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Description: em250芯片datasheet。Ember公司的EM250是单片机解决方案，它集成了2.4GHz、兼容IEEE 802.15.4的收发器以及一个16位XAP2b微处理器。-em250 chip datasheet. Ember' s EM250 is a single chip solution that integrates a 2.4GHz, IEEE 802.15.4-compliant transceiver and a 16-bit XAP2b microprocessor.
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Size: 1725440 |
Author: ruozhuo |
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Description: WiMAX是IEEE802.16以太网络的界面标准，就像Wi-Fi 是802.11以太网络的标准一样。 这两年来，WiMax 已经成为无线网络界最流行的专用字汇。-WiMAX is the IEEE802.16 standard Ethernet interface, just like Wi-Fi is the same as the 802.11 standard Ethernet network. The past two years, WiMax wireless network has become the world' s most popular special vocabulary.
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Size: 6144 |
Author: 卓卓 |
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Description: Cyclic Redundancy Check (CRC) is an error-checking code that is widely used in data
communication systems and other serial data transmission systems. CRC is based on
polynomial manipulations using modulo arithmetic. Some of the common Cyclic Redundancy
Check standards are CRC-8, CRC-12, CRC-16, CRC-32, and CRC-CCIT. This application note
discusses the implementation of an IEEE 802.3 CRC in a Virtex™ device. The reference
design provided with this application note provides Verilog point solutions for CRC-8, CRC-12,
CRC-16, and CRC-32. The Perl script (crcgen.pl) used to generate this code is also
included. The script generates Verilog source for CRC circuitry of any width (8, 12, 16, 32), any
polynomial, and any data input width.-Cyclic Redundancy Check (CRC) is an error-checking code that is widely used in data communication systems and other serial data transmission systems. CRC is based on polynomial manipulations using modulo arithmetic. Some of the common Cyclic Redundancy Check standards are CRC-8, CRC-12, CRC-16, CRC-32, and CRC-CCIT. This application note discusses the implementation of an IEEE 802.3 CRC in a Virtex ™ device. The reference design provided with this application note provides Verilog point solutions for CRC-8 , CRC-12, CRC-16, and CRC-32. The Perl script (crcgen.pl) used to generate this code is also included. The script generates Verilog source for CRC circuitry of any width (8, 12, 16, 32 ), any polynomial, and any data input width.
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Size: 90112 |
Author: 尤恺元 |
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Description: MIH 垂直切换 实现802.21标准的垂直切换功能-Open Source Implementation of the IEEE 802.21 Media Independent Handover Framework
Current release: beta version (0.3) (Released 16 Fev 2011)
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Size: 1075200 |
Author: 张青峰 |
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Description: SILABS新推出SI4463完整DEMO板原理图、PCB图、DEMO程序下载。传输距离1000~2000米
SILABS新推出EZradioPRO系列RFIC:SI4432,适合长远距离的无线数据传输应用.其发射功率+20dbm,接收灵敏度-116dbm,通讯距离2000米
SI4463特点
频率范围= 119–1050 MHz
接收灵敏度 = –126 dBm
调频模式
(G)FSK and 4(G)FSK
OOK and ASK
最大输出功率
+20 dBm (Si4464/63)
+16 dBm (Si4461)
+13 dBm (Si4460)
PA支持 +27 dBm
低功耗
10/13 mA RX
19 mA TX at +10 dBm (Si4460)
待机模式
30 nA shutdown, 50 nA standby
波特率= 0.123 kbps to 1Mbps
快速唤醒转换时间
支持电压= 1.8 to 3.6 V
Excellent selectivity performance
60 dB adjacent channel
> 73 dB blocking at 1 MHz
天线多样性和T / R开关控制
高度可配置的包处理程序
TX and RX 64 byte FIFOs
自动频选(AFC)
自动增益控制 (AGC)
低成本
Low Battery Detector
温度传感器
20-pin QFN 封装
IEEE 802.15.4g compliant
FCC Part 90 Mask D
-SILABS new EZradioPRO series RFICs: SI4432, suitable for long-term distance wireless data transmission applications. Emission power+20dbm, receiver sensitivity-116dbm 2000 meters communication distance the SI4463 characteristics of the frequency range = 119-1050 MHz Receiving Sensitivity =-126 dBm FM mode ( G) FSK and 4 (G) FSK OOK and ASK the maximum output power+20 dBm (Si4464/63)+16 dBm, (Si4461)+13 dBm, (Si4460) PA to support+27 dBm low-power 10/13 mA RX 19 mA TX at+10 dBm (Si4460) 30 nA of the shutdown of the standby mode, 50 nA, the standby baud rate = 0.123 kbps to 1Mbps fast wake-up voltage conversion time support = 1.8 to 3.6 V Excellent selectivity Performance 60 dB adjacent channel> 73 dB, the blocking at 1 MHz antenna diversity and T/R switch control highly configurable packet handler TX and RX 64 byte FIFOs automatic frequency-selective (AFC) Automatic Gain Control (AGC) low-cost Low Battery Detector temperature sensor 20-pin QFN package IEEE 802.15.4g compliant FCC Par
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Size: 2699264 |
Author: 王超 |
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Description: EPM2428 is a new product belonging to RFIC’s EPM
family. It’s a three-stage power amplifier with super
high output power in 2.4-2.5GHz band utilizing
InGaP/GaAs HBT process. With excellent linearity
performance, the device delivers 28dBm output
power and 3 EVM at 4.5V under 54Mbps OFDM
(IEEE802.11g) modulation, and 31dBm output power
meeting 802.11b spectrum mask respectively.
Products in EPM family integrate input matching,
output matching and partial RF choke on chip. It
offers the users good balance in performance and
cost. EPM2428 is housed in a 16 pin 4X4 (mm 2 ) QFN
leadless package.-EPM2428 is a new product belonging to RFIC’s EPM
family. It’s a three-stage power amplifier with super
high output power in 2.4-2.5GHz band utilizing
InGaP/GaAs HBT process. With excellent linearity
performance, the device delivers 28dBm output
power and 3 EVM at 4.5V under 54Mbps OFDM
(IEEE802.11g) modulation, and 31dBm output power
meeting 802.11b spectrum mask respectively.
Products in EPM family integrate input matching,
output matching and partial RF choke on chip. It
offers the users good balance in performance and
cost. EPM2428 is housed in a 16 pin 4X4 (mm 2 ) QFN
leadless package.
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Size: 79872 |
Author: tsairuoyun |
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Description: Linux AES-128-CMAC with TLen 16 for IEEE 802.11w BIP .
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Size: 2048 |
Author: lebangban |
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Description: 介绍了网络分析的基础知识和原理，wireshark工具的使用以及网络包分析的方法。
Chapter 1: The World of Network Analysis
Chapter 2: Introduction to Wireshark
Chapter 3: Capture Traffic
Chapter 4: Create and Apply Capture Filters
Chapter 5: Define Global and Personal Preferences
Chapter 6: Colorize Traffic
Chapter 7: Define Time Values and Interpret Summaries
Chapter 8: Interpret Basic Trace File Statistics
Chapter 9: Create and Apply Display Filters
Chapter 10: Follow Streams and Reassemble Data
Chapter 11: Customize Wireshark Profiles
Chapter 12: Annotate, Save, Export and Print Packets
Chapter 13: Use Wireshark’s Expert System
Chapter 14: TCP/IP Analysis Overview
Chapter 15: Analyze Domain Name System (DNS) Traffic
Chapter 16: Analyze Address Resolution Protocol (ARP) Traffic
Chapter 17: Analyze Internet Protocol (IPv4/IPv6) Traffic
Chapter 18: Analyze Internet Control Message Protocol (ICMPv4/ICMPV6) Traffic
Chapter 19: Analyze User Datagram Protocol (UDP) Traffic
Chapter 20: Analyze Transmission Control Protocol (TCP) Traffic
Chapter 21: Graph IO Rates and TCP Trends
Chapter 22: Analyze Dynamic Host Configuration Protocol (DHCPv4/DHCPv6) Traffic
Chapter 23: Analyze Hypertext Transfer Protocol (HTTP) Traffic
Chapter 24: Analyze File Transfer Protocol (FTP) Traffic
Chapter 25: Analyze Email Traffic
Chapter 26: Introduction to 802.11 (WLAN) Analysis
Chapter 27: Introduction to Voice over IP (VoIP) Analysis
Chapter 28: Baseline "Normal" Traffic Patterns
Chapter 29: Find the Top Causes of Performance Problems
Chapter 30: Network Forensics Overview
Chapter 31: Detect Network Scanning and Discovery Processes
Chapter 32: Analyze Suspect Traffic
Chapter 33: Effective Use of Command Line Tools
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Size: 9437184 |
Author: windtear_pp@163.com |
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Description: AES-128-CMAC with TLen 16 for IEEE 802.11w BIP for Embedded Linux.
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Size: 1024 |
Author: repogu |
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Description: 简化的OFDM系统仿真，其中暂未考虑扰码和卷积码，物理层参数采用802.11a参数，1个长训练符号与6个OFDM数据符号构成1帧，信道为单径rayleigh衰落信道，其中最大多普勒频移为100Hz，信噪比0-30dB，调制方式为QPSK和16-QAM。-Simplified OFDM system simulation, which yet consider scrambling and convolution codes, physical layer parameters using 802.11a parameters, a long training symbols and six OFDM data symbols constitute a channel for single-path rayleigh fading channel, one of the largest Doppler shift is 100Hz, the SNR 0-30dB, the modulation scheme is QPSK and 16-QAM.
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Size: 3072 |
Author: PengJ |
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Description: AES-128-CMAC with TLen 16 for IEEE 802.11w BIP.
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Size: 2048 |
Author: yenzrwy |
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Description: C and MATLAB implementation for LDPC encoding and decoding-Overview of what is provided
WiFi (IEEE 802.11n) LDPC code construction
Encoding by back-substitution for WiFi LDPC codes
Iterative belief propagation (BP) Decoding (including min-sum)
AWGN simulations for BPSK, 4-ASK, 8-ASK (equivalently QPSK, 16-QAM, and 64-QAM)
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Size: 321536 |
Author: 上善若水 |
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