?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Generalized+Superimposed+Pilot+Enabled+URLLC+in+the+Finite+Blocklength+Regime&rft.creator=Zhou%2C+X&rft.creator=Zhu%2C+Y&rft.creator=Xia%2C+W&rft.creator=Zhang%2C+J&rft.creator=Wong%2C+KK&rft.description=Conventional+regular+pilot+(RP)+scheme+is+not+appli-cable+for+ultra-reliable+and+low-latency+communication+(URLLC)+due+to+the+impact+of+finite+blocklength.+In+this+paper%2C+we+propose+to+use+generalized+superimposed+pilot+(GSP)+scheme+for+URLLC+transmission+in+massive+multi-input+multi-output+(mMIMO)+systems.+Distinguishing+from+the+existing+superimposed+pilot+(SP)+scheme%2C+the+GSP+scheme+eliminates+mutual+interference+between+the+pilot+and+data%2C+where+the+data+length+is+optimized%2C+and+the+data+symbols+are+precoded+to+spread+over+the+whole+transmission+block.+With+the+GSP+scheme%2C+we+first+formulate+a+weighted+sum+rate+maximization+problem+by+jointly+optimizing+the+data+length%2C+pilot+power%2C+and+data+power+and+then+derive+closed-form+results%2C+including+optimal+data+length+and+achievable+rate+lower+bound+with+maximum-ratio+combining+(MRC)+detector.+Based+on+the+closed-form+results%2C+we+provide+the+corresponding+iterative+algorithm+where+the+problem+is+transformed+into+the+geometry+program+format+by+using+log-function+approximation+method.+Finally%2C+the+performance+of+the+RP%2C+SP%2C+and+GSP+schemes+are+compared+through+simulation+results%2C+which+reflect+the+superiority+and+robustness+of+the+GSP+scheme+in+URLLC+scenarios.&rft.subject=Geometry%2C+%0D%0ASimulation%2C+%0D%0APrecoding%2C+%0D%0ASymbols%2C+%0D%0AInterference%2C+%0D%0AUltra+reliable+low+latency+communication%2C+%0D%0ARobustness&rft.publisher=IEEE&rft.date=2024-03-21&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A++2023+IEEE+Globecom+Workshops%2C+GC+Wkshps+2023.++(pp.+pp.+1499-1504).++IEEE+(2024)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10191293%2F1%2Fglobalcom_2023%2520%2528Yongxu%2529.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10191293%2F&rft.rights=open