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(Click for frequent words.) 68 Beamforming 67 spatial multiplexing 66 OFDM modulation 65 MIMO antennas 64 Orthogonal Frequency Division Multiplexing 64 Frequency Hopping Spread 64 Direct Sequence Spread 64 MIMO 63 adaptive beamforming 63 #x# MIMO 62 FHSS 62 Shift Keying 62 #QAM 62 OFDM orthogonal frequency 62 orthogonal frequency division multiplexing 62 beamforming 62 Smart Beamforming 62 MIMO antenna technology 61 Spectrum FHSS 61 Spectrum DSSS 61 division duplex TDD 61 Raman amplification 61 Division Multiplexing 60 Avastar #W# 60 Differential Quadrature Phase 60 ZigBee/#.#.# 60 Channel Emulator 60 DQPSK 60 iMAT 60 BeamFlex 60 Phase Shift Keying 60 Iub 60 #G DQPSK 60 #X# MIMO 60 8PSK 60 Quadrature Amplitude Modulation 60 tunable filters 60 Altair FourGee 60 output MIMO 60 OFDM Orthogonal Frequency 59 wireless LANS 59 Bonded ADSL2 + 59 MIMO configurations 59 channel bandwidths 59 Beam Forming 59 #Gbps optical [001] 59 Ethernet Passive Optical 59 GNSS Receiver 59 DIAMETER 59 channel emulators 59 HDMI Extender 59 #T#R 59 AR#AP 59 Wideband Networking Waveform 59 GPON EPON 59 Transceivers 59 GMSK 59 IP SAS SATA 59 loopbacks 59 GSM GPRS EGPRS 59 pseudowire 59 #GBASE SR 59 UMTS TDS CDMA 59 RF Transceiver 59 DPSK 59 Quadrature Phase Shift Keying 59 UMA GAN 59 baseband processing 59 ACE MX 59 Synchronous Ethernet 59 serdes 59 #.#.#/ZigBee 58 Multi Gigabit 58 Generic Framing Procedure GFP 58 wideband RF 58 Anywave 58 channel emulator 58 #.#n MIMO 58 reconfigurable optical 58 Clear WAV 58 Gigabit Ethernet Fibre Channel 58 AEL# 58 smart beamforming 58 DWDM dense wavelength 58 Muxponder 58 coarse wavelength division multiplexing 58 spread spectrum FHSS 58 SyncE 58 IEEE#.#b 58 IEEE#.#.# 58 ME#L 58 Multiple Output 58 WiMAX WiBro 58 #G/#G cellular 58 ACE #WB 58 Modulation ACM 58 True MIMO 58 Resilient Packet Ring RPR 58 HomePlug powerline 58 AWM# 58 integrated circuits RFIC monolithic 58 LTE FDD 58 8G Fibre Channel 58 synchronous Ethernet 58 3GPP LTE 58 ROADM Reconfigurable Optical 58 DAN# 58 VCXO 58 LTE WiMAX 58 MIMO OFDM 58 #G/#G Ethernet 58 #x# Multiple Input 58 #nm VCSEL [001] 58 CDMA 1XRTT 57 baseband chipset 57 Gigabit PON GPON 57 WCDMA HSDPA 57 LTE eNodeB 57 3MHz 57 MIMO Multiple Input Multiple 57 Orthogonal Frequency Division 57 MODBUS RTU 57 GSS# 57 Fusiv 57 BPSK QPSK 57 WiMAX basestation 57 nm CMOS process 57 multirate 57 eHRPD 57 reconfigurability 57 MBd 57 sub channelization 57 SC FDMA 57 Fiber Driver 57 diplexer 57 DOCSIS ® 57 LTE HSPA + 57 SKY# #LF 57 Grandmaster Clock 57 Hitachi EPON 57 MTP# 57 #MHz #MHz #MHz 57 multicarrier 57 HSDPA HSUPA 57 Agilent E#A 57 #GBASE LRM 57 VoATM 57 Dual Carrier 57 CWDM SFP 57 GSM GPRS EDGE UMTS 57 Low Noise Amplifier 57 glueless interface 57 spectrally efficient 57 Switch Routers 57 #G/#G/#G 57 LMS# [001] 57 SPINNERchip 57 SoftMSC 57 HSxPA 57 TRF# [002] 57 ACM Adaptive Coding 57 RF vector 57 Optical Multiservice Edge 57 PWE3 57 Agilent MXA 57 demodulating 57 OFDM MIMO 57 orthogonal frequency division 57 Digital Optical Networking 57 modulation formats 57 ZL# device 57 IEEE #.#a/b/g 57 ZMD# 57 #.#b wireless LAN 57 AWB# 57 CWDM DWDM 57 Intellon HomePlug ICs 57 BroadLight BL# 57 #G QSFP 57 transceiver module 57 AirMaestro 57 HSPA WiMAX 57 MT#C 57 EDGE WCDMA 57 AirPrime MC# 56 #.#G EPON 56 Atheros ROCm 56 multistandard 56 Broadcom BCM# [001] 56 Passive Optical Networks 56 MIMO WLAN 56 IEEE #v# 56 Softransceiver 56 True MIMO Gen3 56 AN #i 56 dynamic beamforming 56 2G #.#G 56 LTE Advanced 56 instrumentation amplifiers 56 SDH SONET 56 #.#j 56 MicroMAX 56 Metalink WLANPlus 56 adaptive equalization 56 microwave integrated circuits 56 MEF certified 56 Multipoint 56 Data Modem 56 modulation schemes 56 EtherMap 56 Ultra wideband 56 SoftAtHome Operating Platform 56 Gigabit Ethernet transceivers 56 RF Tuner 56 GPRS EDGE UMTS 56 TNETV# 56 Quadrature Amplitude Modulation QAM 56 Freescale MSC# 56 MIMO #.#n 56 #dBi 56 WLANPlus 56 GDM# 56 #Base FX 56 SQN# 56 PSQM 56 tunable transponders 56 Smart Antenna 56 UWB radios 56 Forward Error Correction 56 Wireless Range Extender 56 Wavelength Division Multiplexing WDM 56 ADC DAC 56 Agilent Technologies Introduces 56 infrared IrDA 56 Packet Core 56 W-CDMA/HSDPA 56 Demodulator 56 Multiplexers 56 #G OTN [001] 56 MTS #A 56 ReFLEX 56 quadrature amplitude modulation 56 Cisco CCX 56 DVB-S/S2 56 FTTx networks 56 MT#A 56 zNID 56 spectral efficiency 56 ExtendAir 56 inverse multiplexing 56 PHY layer 56 Mindspeed Transcede 56 baseband chipsets 56 ONUs 56 GSM# [001] 56 Bluetooth UWB 56 Synapse RF Engine 56 RTU# 56 DWDM optical 56 FlexWave Prism 56 Atheros AR# 56 frequency synthesizers 56 CoIP 56 MIMO antenna 56 Wi Fi #.#a/b/g 56 Bluetooth EDR 56 Ethernet-over-SONET/SDH 56 UWB ultra wideband 56 QAM quadrature amplitude modulation 56 xPON 56 #QAM modulation 56 CDMA W CDMA 56 E pHEMT 56 IP RAN 56 transmit beamforming 56 #.#-# WiMAX 56 multimode LTE 56 LiNbO3 56 TDA# [002] 56 HSDPA WCDMA 55 Infinera DTN optical 55 FTB #B 55 #/#.#G 55 basestation 55 3G WCDMA HSPA 55 ultrawideband UWB 55 iCoupler 55 Synchronous Digital Hierarchy 55 HSPA WCDMA 55 3GPP standardized 55 #.#b #.#g 55 Selection DFS 55 Spirent GSS# 55 eNodeB 55 3G UbiCell 55 unshielded twisted pair 55 basestations 55 Ethernet SONET 55 DVB S2 modulation 55 Protocol Tester 55 Atheros XR 55 HSPA Evolution 55 Roaming Client 55 HN# Series 55 CPE modems 55 ProASIC Plus 55 Multimode 55 Embedded Module 55 USB Dongle 55 remotely upgradeable 55 directional antennas 55 Frequency Synthesizer 55 #.#a/b/g/n 55 DP QPSK 55 Gbps optical 55 picoArray 55 picocells 55 Industry Highest Density 55 IEEE #.#b g 55 wireless LAN Bluetooth 55 Multiplexing 55 Pseudo Wire 55 Signal Analyzers 55 CESoP 55 FTTH FTTP 55 3GPP compliant 55 HotView Pro 55 Serdes 55 ADSL VDSL 55 SkyExtender 55 DO Rev 55 LTE EPC 55 FGR2 PE 55 optical spectrum analyzers 55 mesh topology 55 IPSec encryption 55 quadrature amplitude modulation QAM 55 T#/E# interfaces 55 InnerWireless Horizon 55 ultra wideband UWB 55 Picocell 55 Single Chip 55 WCDMA EDGE 55 Adaptive Modulation 55 TDOA 55 #G optical [001] 55 #.#n Router 55 FibeAir IP 55 Industry Smallest 55 Femto 55 SONET EoS 55 #.#bg 55 Ultra Wideband 55 UMTS FDD 55 IEEE #.#d 55 Aperto PacketMAX 55 OCT# Series 55 Add Drop Multiplexer 55 TDD LTE 55 #/#Base-T 55 6LoWPAN 55 MI #XM 55 ETSI compliant 55 iLBC 55 #.#Gbps [001] 55 MDM# 55 #Gigabit 55 FlexACM 55 TJA# 55 CMTSs 55 Spanning Tree 55 Physical Layer PHY 55 Power Amplifiers 55 LVDS LVPECL 55 #GBase LRM 55 #Base X 55 Protocol Stack 55 Single RAN 55 Marvell #W# 55 xDSL modems 55 MHz TDD 55 division duplex FDD 55 Freescale UWB 55 omni directional antennas 55 macrocell 55 transceiver chipset 55 IMS architectures 55 Powerline Networking 55 WiMedia compliant 55 Femtocell Solution 55 singlemode 55 ULP Bluetooth 55 Metamaterial 55 Wireless Broadband Router 55 EDGE Evolution 55 hosted NAT traversal 55 Sigtran 55 triplexer 55 baseband LSI 55 EtherSAM 55 Virtual Concatenation VCAT 55 frequency synthesizer 55 Mesh Networking 55 #gbps 55 AWL# 55 Silicon Tuner 55 datarates 55 WLAN #.#n 55 HSPA LTE 55 IPmux 55 Raman amplifiers 55 USB Extender 54 BCSM# 54 M CMTS 54 mux demux 54 baseband IC 54 DWDM CWDM 54 SFP modules 54 LLDP MED 54 Wideband 54 Model #A 54 Tx Rx 54 ProST 54 UMTS HSPA + 54 Gigabit Passive Optical 54 PDH SDH 54 terrestrial concentrator 54 #.#b g WLAN 54 XAUI interface 54 Firetide HotPort 54 TDA# [001] 54 3G femtocell 54 HotPort 54 silicon tuners 54 H.# SIP 54 OADM 54 crosstalk cancellation 54 Redline RedMAX 4C 54 WLAN Bluetooth 54 EDFAs 54 NetMotion Mobility 54 XFP optical 54 SIP MGCP 54 PXB 54 GPIB interface 54 SHDSL 54 transimpedance amplifier 54 femtocells picocells 54 Hitachi AMN# 54 #GPP/#GPP# 54 audio CODEC 54 LTE UE 54 OLTs 54 MT#B [001] 54 Ethernet Extenders 54 TCI# 54 Atheros WLAN 54 ADSL2 + VDSL2 54 serial transceivers 54 HiperMAX 54 Ember EM# 54 TRF# [001] 54 IP Backhaul 54 UMTS GSM GPRS 54 MOTOTRBO 54 polar modulation 54 Mixed Signal IC 54 GEPON 54 ActivFlex 54 MSP# [002] 54 SeeGull MX 54 ASN GW 54 Circuit Emulation 54 Mobile WIMAX 54 IEEE #.#b 54 RF amplifier 54 Ethernet OAM 54 #GHz frequency 54 LVPECL 54 IWLAN 54 #.#a/b/g WLAN 54 MT#B BTS Master 54 GAO# [002] 54 #G/#G [001] 54 #.#aq 54 jitter attenuation 54 pHEMT 54 LX4 54 EAP AKA 54 WiMAX LTE 54 nm VCSEL 54 Spread Spectrum 54 LDMOS devices 54 W-CDMA/HSPA 54 Link OAM 54 ATSC NTSC 54 #APSK 54 Trimble GNSS 54 GSM CDMA EV DO 54 iNetVu R 54 KVM extender 54 TDM Ethernet 54 Silicon Germanium SiGe 54 #GBASE CX4 54 UMTS W CDMA 54 RFX# 54 UMTS LTE 54 WHDI Wireless 54 RF subsystem 54 RangeMax Dual Band 54 GaAs MMIC 54 noise ratio OSNR 54 Harmonic encoders 54 SONET SDH protocols 54 Atheros chipset 54 Division Duplex FDD 54 Peregrine UltraCMOS 54 CSM# 54 Dual Polarization Quadrature Phase 54 XFP modules 54 ZigBee modules 54 EMCORE Photovoltaic segment 54 Motorola Invests 54 iSPAN 54 CMOS Photonics technology 54 TMS#TCI# 54 #Gbit s [002] 54 ROSAs 54 WirelessUSB 54 wireless LAN chipset 54 WinPath 54 CDMA femtocell 54 ZG#M 54 stripline 54 tunable optical 54 GE PON 54 Proximetry AirSync 54 Power Amplifier 54 customizable dataplane processor 54 RFoG 54 StarCore DSP 54 Etherjack 54 fix TTFF 54 DTV ATSC 54 DRX H 54 ADSL2Plus 54 Drop Multiplexer ROADM 54 signal analyzer VSA 54 Highly Integrated 54 Transmit Receive 54 downconverter 54 AccuROAM 54 CBA# 54 LTE PHY 54 BreezeACCESS 54 DVB ASI 54 ASON 54 IEEE #b 54 Time Division Duplexing 54 Alvarion BreezeACCESS VL 54 #GbE SFP + 54 #v# [004] 54 AR#AP G 54 Gigabit Ethernet Passive Optical 54 GPON OLT 54 PacketCable TM 54 WMP# [002] 54 Tsunami MP.# 54 ARM9 core 54 #G #G [002] 54 WEP WPA WPA2 54 embedded SERDES 54 Fulcrum FocalPoint 54 GPS AGPS 54 Alvarion WiMAX Forum 54 CDMA 1xRTT 54 GPS SBAS 54 ConnectPort WAN 54 synchronous asynchronous 54 OFDM 54 Rapid Spanning Tree 54 IPv4 IPv6 54 VDSLPlus 54 SE#L 54 PCI Express Gen2 54 WWAN WLAN 54 DP QPSK modulation 54 #pin [001] 54 #.#g wireless LAN 54 WiMAX GSM EDGE 54 transmitters receivers 54 Network Terminals ONTs 54 SONET SDH PDH 54 muxponder 54 LVPECL LVDS 54 6GHz 54 TigerSHARC 54 SDIO interface 54 #G coherent [001] 54 UltraCMOS TM 54 Waveform Generator 54 LatticeECP 54 Wintegra WinPath 54 #.#/#G 54 LVCMOS 54 Vector Signal Generator 54 Noise Suppression 54 wavelength division multiplexing 54 gigabit LAN 54 #/#BaseT Ethernet 54 Bluetooth Zigbee 53 Transceiver 53 IrDA Bluetooth 53 division multiplexing 53 ZoneGate 53 adaptive modulation 53 RSTP 53 CMOS RF transceiver 53 G PON 53 HD SDI input 53 #/#/#/#MHz 53 CyFi 53 Flexi Multiradio Base 53 sensor actuator 53 1x RTT 53 GSM UMTS CDMA 53 Baseband Processor 53 FLASH OFDM 53 TDM ATM 53 SDH STM 53 Tatara Convergence Server 53 OC-#/STM-# [001] 53 XFP module 53 RRHs 53 Gigabit Ethernet uplinks 53 Automatically Switched Optical 53 #.#G/#G 53 Gb s optical 53 iMAT antenna 53 VCXOs 53 VDSL2 ADSL2 + 53 AN #e 53 RF transceiver IC 53 #.#GHz #.#b g 53 RFR# 53 CX# [001] 53 QT# [002] 53 ZeroWire 53 UMTS TDD 53 Femto Gateway 53 cdma# 53 multimode optical fiber 53 RF tuner 53 DAB DAB + 53 MediaLB 53 Low Noise Amplifiers 53 #.#um CMOS 53 multichassis 53 FlexiPacket Microwave 53 SparX II 53 #G/#G/LTE 53 mesh nodes 53 Broadband Router 53 DEV DA TOMAR NEXT 53 Fast Fourier Transform FFT 53 Vanu Anywave 53 software defined AdaptaCell 53 transceiver IC 53 diplexers 53 PIN photodiodes 53 GlobeSurfer R ICON 53 Self Optimizing 53 OneChip 53 ADF# 53 PCIe Gen2 53 demodulate 53 VRRP 53 BLUETOOTH ® 53 Microwave Radios 53 TriPower 53 WPANs 53 TestPoint 53 Zarlink CESoP 53 1GigE 53 FlexWave 53 CoolPAM 53 Network Emulator 53 Passive Optical Networking 53 Luxul 53 Range Extender 53 GPRS GSM 53 #.#i WPA2 53 femto cell 53 InterPort TM 53 SIP Session Initiated Protocol 53 CS#L# 53 Tunable XFP 53 Time Protocol PTP 53 Fusion MPT 53 OTDRs 53 Customer Premises Equipment CPE 53 UMTS femtocell 53 CWave UWB 53 MBMS 53 #Mbps downstream [001] 53 ZigBee mesh 53 Telecommunications DECT 53 Packet Processor 53 quadrature modulators 53 DynaMate 53 3Gb s SDI 53 Core Routers 53 #.#g Wireless 53 N Gigabit Router 53 +# dBm output 53 SGMII 53 TxDAC 53 Silicon CMOS Photonics 53 #/#G [002] 53 MC#i 53 Telemetrix R 53 GSM Quadband 53 BEQ# 53 pulse width modulation 53 UMTS CDMA# WiFi 53 ZigBee compliant 53 SFP ports 53 Phased Array 53 AN #i broadband 53 DVB S2 standard 53 #G XFP 53 FlexPort 53 WCDMA GSM 53 FSK modulation 53 FlexEQ 53 Reconfigurable Optical Add 53 mobile WiMAX #.#e 53 demodulation 53 SFP transceivers 53 Worldwide Interoperability 53 Femtocell Gateway 53 MetroMesh 53 Shock WAV 53 LTE baseband 53 MS#xB 53 IEEE #.#a 53 handheld spectrum analyzer 53 Atheros XSPAN 53 SingleRAN 53 JDSU Adds 53 LoopStar 53 Wireless Wireless Backhaul 53 FIPS #-# compliant 53 W CDMA HSDPA 53 3GPP Long Term 53 VoCable 53 MetroNID 53 transceiver modules 53 QPSK 53 IP multicasting 53 Noise Ratio 53 Digi Connect 53 OC-#/STM-# [004] 53 Serial RapidIO ® 53 BelAir# 53 HSDPA EDGE 53 GPRS EDGE 3G 53 Trident7 53 Alvarion WiMAX 53 Optical Switch 53 SCSI Fibre Channel 53 modular stackable 53 BlueCore4 ROM 53 multipath propagation 53 ISDN DSL 53 SOI CMOS 53 Ultra DMA 53 directional couplers 53 Intensi fi 53 Frequency Hopping 53 SiRFstarIII GPS 53 RF propagation 53 MB OFDM 53 Raman amplifier 53 MACSec 53 #G GPON 53 eMTA 53 Globalstar Simplex data 53 Cavium OCTEON 53 WPA2 PSK 53 IEEE #.#e standard 53 IMS SIP 53 Reference Designs 53 #.#b WLAN 53 local oscillator LO 53 EtherMap PDH 53 wideband codec 53 Mentum Planet 53 WinPath3 53 #.#d WiMAX 53 COFDM 53 N#C HSA 53 Ikanos chipsets 53 ROCm 53 APP# [002] 53 Ethernet aggregation 53 BCM# SoC 53 CAN transceiver 53 Ripwave 53 visually lossless 53 SpotCell 53 loopback mode 53 ADRF# 53 ActiveConnect 53 CAT5 cables 53 #.#x authentication 53 UHF frequencies 53 Intellon HomePlug AV 53 EN# MPEG 4 53 Ripcord2 53 UWB WiMedia 53 jitter wander 53 EZRadio 53 OptiMon 53 1xEV DV 53 PtMP 53 Frequency Bands 53 Wireless Backhaul 53 SPiDCOM 53 modular CMTS 53 Add Drop Multiplexers 53 iMAT ® 53 Basestation 53 #/#/# Ethernet 53 cable modem DSL 53 Adaptive Optical Engine 53 Wi Fi #.#n 53 E#/T# 53 Broadcom Intensi fi 53 TX RX 53 Video Codecs 53 #.#Gbps [002] 53 #.#abg 53 EmberZNet 53 pluggable modules 53 deployed picocell 53 Alcatel Evolium 53 wideband codecs 53 WirelessMAN 53 Iuh 53 GSM GPRS cellular 53 modulated RF 53 Digivance 53 #Base SX 53 Universal Asynchronous Receiver 53 Spirent Landslide 53 Residential Gateways 53 Agilent U#A 53 demodulators 53 wideband 53 SONET SDH optical 53 viewing EKGs 53 OC# [003] 53 UMTS 3G 53 omni directional antenna 53 Altera FPGAs 53 micro pico 53 insulator SOI technology 53 GSM GPRS EDGE WCDMA 53 GSM EDGE networks 53 DragonWave Horizon Compact 53 Sequans SQN# 53 MTS# 53 #/#/#Base-T 53 #Tx/#Rx 53 asynchronous SRAM 53 #.#n WLAN 53 Satellite Terrestrial 53 PCIe GbE 52 PowerBook G4 DDR2 #mb 52 Frequency Converters 52 OC-#/STM-# [003] 52 Nortel #G [001] 52 ZebOS 52 #Base T [002] 52 ADSL/ADSL2 + 52 InternetTalker 52 #Mbit/sec [001] 52 AR# chipset 52 Wavenis 52 Draft #n 52 multihop 52 I2C interfaces 52 EoC 52 ARM9 processor 52 Blackfin processors 52 IPNET 52 Multiple Output MIMO antenna 52 SFP + optical 52 PIN diodes 52 Couplers 52 #GBASE SR# 52 Capesso ™ 52 #.#b/g/n 52 UMTS EDGE GPRS GSM 52 Dynamic PSK 52 Optical Interconnect 52 OpenRG 52 HDMI switchers 52 #nm wavelength [002] 52 pluggable optics 52 WiFi #.#b 52 nanometer CMOS process 52 Packet Optical Platform 52 Atmel AVR# 52 Dispersion Compensation 52 #GBASE LR 52 IPoDWDM 52 Ovation MC# 52 #Base T [003] 52 BTS Master MT#B 52 IO MIMO 52 Electronic Dispersion Compensation 52 WiLink 52 Metalink #.#n 52 Microwave Backhaul 52 ConnectPort WAN VPN 52 HSDPA UMTS 52 H.#/SVC 52 Wideband CDMA 52 ZigBee protocol 52 TUNet 52 BelAir#T 52 Wireless Routers 52 Zyray 52 optical transceiver modules 52 RFCMOS 52 mode dispersion PMD 52 echo canceller 52 eNodeBs 52 Coarse Wavelength Division Multiplexing 52 #MHz bandwidth 52 G.# codec 52 SONET Ethernet 52 #GBASE KR 52 G.SHDSL 52 Interference Detection 52 ATmega#RFA# 52 #Mpbs 52 GaAs FET 52 RFPON 52 Gbit s optical 52 Reference Methodology 52 microcell 52 optical modulators 52 IEEE#v# 52 Trimble VRS 52 DVB S2 satellite 52 EasyST 52 CMOS photonics 52 Vmux 52 SurfBeam 52 Carrius 52 Schottky Diode 52 SPH#D 52 Chipcon CC# 52 crosspoint switches 52 T BERD 52 UMTS EDGE 52 XPIC 52 RS# serial port 52 GPON optical 52 Silicon Germanium 52 LTE basestations 52 Signal Generators 52 dense wavelength division multiplexing 52 DWDM Dense Wavelength Division 52 synthesizable IP 52 RF amplifiers 52 GaAs PHEMT 52 SIP IMS 52 CWave 52 Digital Converter ADC 52 SFP + modules 52 3G SDI 52 Ethernet Fibre Channel 52 Common Photonic Layer 52 ancillary terrestrial 52 serial interfaces 52 GFP VCAT 52 Airspan HiperMAX 52 digital isolators 52 MB DDR2 SDRAM 52 Home Phoneline Networking 52 TNETW# 52 Backhaul Solution 52 Distribution Amplifier 52 wireless intrusion prevention 52 OFDM PHY