?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Constructive+Interference+Precoding+for+Reliable+Non-Orthogonal+IoT+Signaling&rft.creator=Xu%2C+T&rft.creator=Liu%2C+F&rft.creator=Li%2C+A&rft.creator=Masouros%2C+C&rft.creator=Darwazeh%2C+I&rft.description=Efficient+signal+waveform+design+is+paving+the+way+to+next+generation+Internet+of+Things+(NG-IoT)+communications.+Non-orthogonal+spectrally+efficient+frequency+division+multiplexing+(SEFDM)+waveform+brings+bandwidth+saving+advantages+but+at+the+cost+of+complex+signal+processing+in+IoT+devices.+Power+efficiency+is+the+main+concern+in+IoT+applications+since+IoT+devices+have+limited+battery+life+and+cannot+easily+recharge+after+deployment.+Therefore%2C+signal+processing+in+each+IoT+device+should+be+as+simple+as+possible.+Precoding+is+applied+as+the+strategy+at+transmitters+to+pre-cancel+the+self-created+inter+carrier+interference+(ICI)+caused+by+the+non-orthogonal+sub-carrier+packing%2C+and+to+facilitate+low-complexity+IoT+receivers.+However%2C+the+typical+zero+forcing+(ZF)+precoding+results+in+performance+degradation+due+to+the+ill-conditioned+precoding+matrix.+To+achieve+reliable+communications+using+SEFDM+signals%2C+a+robust+constructive+interference+(CI)+precoding+method+is+employed%2C+which+constructively+converts+interference+power+to+useful+signal+power.+Thus%2C+signal-to-noise+ratio+(SNR)+is+effectively+improved+leading+to+better+performance+than+ZF+precoding.+This+work+initially+studies+the+performance+of+precoding+methods+in+simulation.+Furthermore%2C+the+CI+precoding+is+practically+tested+over-the-air+on+a+multi-user+multiple+input+multiple+output+(MIMO)-SEFDM+software+defined+radio+NG-IoT+platform.&rft.publisher=Institute+of+Electrical+and+Electronics+Engineers&rft.date=2019-04-29&rft.type=Proceedings+paper&rft.publisher=IEEE+INFOCOM&rft.language=eng&rft.source=+++++In%3A++Proceedings+of+IEEE+Conference+on+Computer+Communications+Workshops+(INFOCOM+WKSHPS).++++Institute+of+Electrical+and+Electronics+Engineers%3A+Paris%2C+France..+(2019)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10074265%2F7%2FMasouros_Constructive%2520Interference%2520Precoding%2520for%2520Reliable%2520Non-Orthogonal%2520IoT%2520Signaling_AAM.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10074265%2F&rft.rights=open