MIMO-OFDM WLAN Architectures, Area Coverage, and Link Adaptation for Urban Hotspots
This paper considers the suitability of a range of multi-input-multi-output (MIMO) orthogonal frequency-division multiplexing architectures for use in urban hotspots. A ray-tracing propagation model is used to produce realistic MIMO channel data. This information is used to determine the expected th...
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| Published in | IEEE transactions on vehicular technology Vol. 57; no. 4; pp. 2364 - 2374 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
| Published |
New York, NY
IEEE
01.07.2008
Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0018-9545 1939-9359 |
| DOI | 10.1109/TVT.2007.909289 |
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| Abstract | This paper considers the suitability of a range of multi-input-multi-output (MIMO) orthogonal frequency-division multiplexing architectures for use in urban hotspots. A ray-tracing propagation model is used to produce realistic MIMO channel data. This information is used to determine the expected throughput and area coverage for various physical (PHY) layer schemes. Site-specific throughput predictions are generated in a city-center environment. Link adaptation (LA) is shown to play a key role in the choice of space-time algorithm, the use of adaptive modulation and coding, and the number of antennas employed at both ends of the radio link. No single PHY layer scheme is suitable to cover the entire coverage area. Results demonstrate the need for MIMO LA under a wide range of channel conditions. For the area under test, 2% of covered locations selected a spatial multiplexing (SM) scheme, 50% selected a space-time block coding (STBC) scheme, and 48% selected a hybrid SM/STBC scheme. With suitable power control and LA, for the scenario under consideration, high peak capacities and good geographic coverage were achieved. |
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| AbstractList | This paper considers the suitability of a range of multi-input-multi-output (MIMO) orthogonal frequency-division multiplexing architectures for use in urban hotspots. A ray-tracing propagation model is used to produce realistic MIMO channel data. This information is used to determine the expected throughput and area coverage for various physical (PHY) layer schemes. Site-specific throughput predictions are generated in a city-center environment. Link adaptation (LA) is shown to play a key role in the choice of space-time algorithm, the use of adaptive modulation and coding, and the number of antennas employed at both ends of the radio link. No single PHY layer scheme is suitable to cover the entire coverage area. Results demonstrate the need for MIMO LA under a wide range of channel conditions. For the area under test, 2% of covered locations selected a spatial multiplexing (SM) scheme, 50% selected a space-time block coding (STBC) scheme, and 48% selected a hybrid SM/STBC scheme. With suitable power control and LA, for the scenario under consideration, high peak capacities and good geographic coverage were achieved. This paper considers the suitability of a range of multi-input-multi- output (MIMO) orthogonal frequency-division multiplexing architectures for use in urban hotspots. A ray-tracing propagation model is used to produce realistic [abstract truncated by publisher]. Link adaptation (LA) is shown to play a key role in the choice of space-time algorithm, the use of adaptive modulation and coding, and the number of antennas employed at both ends of the radio link. |
| Author | Bian, Y.Q. Tameh, E.K. McGeehan, J.P. Nix, A.R. |
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| Keywords | Spatial Multiplexing Space Time Block Codes Power Control Link Adaptation OFDM Propagation Block code Wireless LAN Space-time codes Hot spot Wireless telecommunication space-time block codes (STBCs) Information rate Urban area Spatial multiplexing spatial multiplexing (SM) Ray tracing Localization Adaptive modulation Modulation coding orthogonal frequency- division multiplexing (OFDM) Antenna MIMO system Radio link Power electronics Space time Algorithm Information transmission Adaptive coding propagation Power control Orthogonal frequency division multiplexing Link adaptation (LA) |
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| References_xml | – ident: ref37 doi: 10.1109/ACSSC.1998.751635 – year: 0 ident: ref40 – year: 2000 ident: ref3 publication-title: OFDM for Wireless Multimedia Communications – year: 2002 ident: ref1 publication-title: Strategy for the Future Use of the Radio Spectrum in the UK (2002) – ident: ref44 doi: 10.1109/VETECF.2002.1040337 – ident: ref25 doi: 10.1109/TVT.2007.895606 – year: 2004 ident: ref8 publication-title: Antenna Array Technology and MIMO Systems – ident: ref39 doi: 10.1109/TSP.2003.818160 – ident: ref7 doi: 10.1109/TSP.2003.820989 – year: 2004 ident: ref17 publication-title: IEEE 802 11 Wireless LANs TGn Channel Models – ident: ref27 doi: 10.1109/TWC.2005.850318 – ident: ref33 doi: 10.1109/49.730453 – year: 2003 ident: ref2 publication-title: Introduction to Space?Time Wireless Communications – ident: ref43 doi: 10.1109/TAP.2004.832363 – ident: ref32 doi: 10.1109/26.837052 – ident: ref35 doi: 10.1109/VETECS.2000.851224 – ident: ref29 doi: 10.1109/VETECF.2000.887120 – ident: ref36 doi: 10.1109/WCNC.2002.993489 – ident: ref38 doi: 10.1109/ISWCS.2004.1407269 – ident: ref15 doi: 10.1109/SPAWC.2005.1506229 – ident: ref21 doi: 10.1049/el:20030785 – ident: ref23 doi: 10.1109/VETECS.2005.1543267 – year: 0 ident: ref42 – ident: ref30 doi: 10.1109/TSP.2003.820144 – ident: ref13 doi: 10.1109/TCOMM.2005.849774 – ident: ref16 doi: 10.1109/TIT.2003.810646 – year: 0 ident: ref41 – volume: 1 start-page: 272 year: 2002 ident: ref20 article-title: Analysis and modelling of multiple-output (MIMO) radio channel based on outdoor measurements conducted at 2.5 GHz for fixed BWA applications publication-title: Proc IEEE ICC – ident: ref10 doi: 10.1002/bltj.2015 – volume: 1 start-page: 997 year: 2002 ident: ref11 article-title: Multiple-input multiple-output wireless communication systems using antenna pattern diversity publication-title: Proc IEEE Globecom – ident: ref18 doi: 10.1109/VETECF.2000.886625 – year: 1999 ident: ref4 publication-title: Draft Supplement to Standard for LAN/MAN Part 11 MAC & PHY Specifications – volume: 1 start-page: 296 year: 2005 ident: ref9 article-title: High throughput MIMO?OFDM WLAN for urban hotspots publication-title: Proc IEEE VTC?Fall – volume: 2 start-page: 587 year: 2002 ident: ref19 article-title: From antenna spacings to theoretical capacities?Guidelines for simulating MIMO systems publication-title: Proc IEEE PIMRC – ident: ref22 doi: 10.1109/TWC.2006.1576533 – ident: ref26 doi: 10.1109/VETEC.1997.605900 – ident: ref34 doi: 10.1109/ICASSP.2001.940504 – year: 2004 ident: ref5 publication-title: Part 16 Air Interface for Fixed Broadband Wireless Access Systems – ident: ref12 doi: 10.1109/MCOM.2002.1007416 – ident: ref14 doi: 10.1109/VETECS.2005.1543936 – ident: ref24 doi: 10.1109/APS.2005.1552529 – volume: 27 start-page: 379 year: 1948 ident: ref31 article-title: A mathematical theory of communication publication-title: Bell Labs Tech J doi: 10.1002/j.1538-7305.1948.tb01338.x – ident: ref28 doi: 10.1109/TCOMM.2006.873978 – ident: ref6 doi: 10.1109/MCOM.2002.1031841 |
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| SubjectTerms | Adaptive arrays Algorithms Applied sciences Business and industry local networks Coding, codes Exact sciences and technology Frequency division multiplexing Information, signal and communications theory Link adaptation (LA) MIMO Modulation coding Modulation, demodulation Multiplexing Networks and services in france and abroad orthogonal frequency-division multiplexing (OFDM) Physical layer power control propagation Radio link Ray tracing Samarium Signal and communications theory space-time block codes (STBCs) spatial multiplexing (SM) Telecommunications Telecommunications and information theory Teleprocessing networks. Isdn Throughput Wireless communications Wireless LAN |
| Title | MIMO-OFDM WLAN Architectures, Area Coverage, and Link Adaptation for Urban Hotspots |
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