Impact of Array Configuration on Head-Mounted Display Performance at mm Wave Bands

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Fältnamn	Indikatorer	Metadata
000		04054naa a2200397 4500
001		oai:lup.lub.lu.se:2bbaf573-813b-4869-9f10-09e2d3d15d38
003		SwePub
008		231113s2023 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://lup.lub.lu.se/record/2bbaf573-813b-4869-9f10-09e2d3d15d382 URI
024	7	a https://doi.org/10.1109/EuCNC/6GSummit58263.2023.101883322 DOI
040		a (SwePub)lu
041		a engb eng
042		9 SwePub
072	7	a kon2 swepub-publicationtype
072	7	a ref2 swepub-contenttype
100	1	a Marinsek, Alexanderu Catholic University of Leuven4 aut
245	1 0	a Impact of Array Configuration on Head-Mounted Display Performance at mm Wave Bands
264	1	c 2023
300		a 6 s.
520		a Immersing a user in life-like extended reality (XR) scenery using a head-mounted display (HMD) with a constrained form factor and hardware complexity requires remote rendering on a nearby edge server or computer. Millimeter-wave (mmWave) communication technology can provide sufficient data rate for wireless XR content transmission. However, mmWave channels exhibit severe sparsity in the angular domain. This means that distributed antenna arrays are required to cover a larger angular area and to combat outage during HMD rotation. At the same time, one would prefer fewer antenna elements/arrays for a lower complexity system. Therefore, it is important to evaluate the trade-off between the number of antenna arrays and the achievable performance to find a proper practical solution. This work presents indoor 28 GHz mmWave channel measurement data, collected during HMD mobility, and studies the dominant eigenmode (DE) gain. DE gain is a significant factor in under-standing system performance since mm Wave channel sparsity and eigenmode imbalance often results in provisioning the majority of the available power to the DE. Moreover, it provides the upper performance bounds for widely-adopted analog beamformers. We propose 3 performance metrics - gain trade-off, gain volatility, and minimum service trade-off - for evaluating the performance of a multi-array HMD and apply the metrics to indoor 28 GHz channel measurement data. Evaluation results indicate, that 3 arrays provide stable temporal channel gain. Adding a 4th array further increases channel capacity, while any additional arrays do not significantly increase physical layer performance.
650	7	a TEKNIK OCH TEKNOLOGIERx Elektroteknik och elektronikx Telekommunikation0 (SwePub)202042 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Electrical Engineering, Electronic Engineering, Information Engineeringx Telecommunications0 (SwePub)202042 hsv//eng
653		a antenna configuration
653		a channel measurements
653		a Extended reality
653		a millimeter-wave
653		a wireless
700	1	a Cai, Xuesongu Lund University,Lunds universitet,Kommunikationsteknologi,Forskargrupper vid Lunds universitet,Communications Engineering,Lund University Research Groups4 aut0 (Swepub:lu)xu2214ca
700	1	a De Strycker, Lievenu Catholic University of Leuven4 aut
700	1	a Tufvesson, Fredriku Lund University,Lunds universitet,Kommunikationsteknologi,Forskargrupper vid Lunds universitet,LTH profilområde: AI och digitalisering,LTH profilområden,Lunds Tekniska Högskola,Communications Engineering,Lund University Research Groups,LTH Profile Area: AI and Digitalization,LTH Profile areas,Faculty of Engineering, LTH4 aut0 (Swepub:lu)es-ftu
700	1	a Van Der Perre, Liesbetu Catholic University of Leuven4 aut0 (Swepub:lu)li1434va
710	2	a Catholic University of Leuvenb Kommunikationsteknologi4 org
773	0	t 2023 Joint European Conference on Networks and Communications and 6G Summit, EuCNC/6G Summit 2023g , s. 192-197q <192-197z 9798350311020
856	4	u http://dx.doi.org/10.1109/EuCNC/6GSummit58263.2023.10188332y FULLTEXT
856	4 8	u https://lup.lub.lu.se/record/2bbaf573-813b-4869-9f10-09e2d3d15d38
856	4 8	u https://doi.org/10.1109/EuCNC/6GSummit58263.2023.10188332

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