Adaptive Transmission Using Channel Inversion for Multiple-Antenna Systems
| dc.contributor.advisor | Brian L. Hughes, Committee Chair | en_US |
| dc.contributor.advisor | J. Keith Townsend, Committee Member | en_US |
| dc.contributor.advisor | Rudra Dutta, Committee Member | en_US |
| dc.contributor.author | James, Chris Mary | en_US |
| dc.date.accessioned | 2010-04-02T18:03:45Z | |
| dc.date.available | 2010-04-02T18:03:45Z | |
| dc.date.issued | 2005-04-07 | en_US |
| dc.degree.discipline | Electrical Engineering | en_US |
| dc.degree.level | thesis | en_US |
| dc.degree.name | MS | en_US |
| dc.description.abstract | Adaptive modulation often achieves a significantly higher capacity than nonadaptive modulation in multiple-antenna wireless communication systems, particularly when the transmit antennas outnumber the receive antennas. Adaptive modulation generally involves varying signal power, constellation and coding in response to changing channel conditions, which adds considerable system complexity. This thesis examines simpler adaptive transmission schemes based on channel inversion (CI) and truncated channel inversion (TCI) in combination with multi-dimensional eigen-beamforming. Optimal CI and TCI schemes for multiple-antenna systems are derived and it is shown that these schemes suffer a small loss in capacity relative to optimal adaptive modulation, even for relatively small antenna arrays. This thesis also considers a practical coding scheme, turbo trellis-coded modulation (TTCM) in conjunction with CI. The results indicate that this scheme can perform within 4 dB of the optimal adaptive capacity. | en_US |
| dc.identifier.other | etd-12292004-180801 | en_US |
| dc.identifier.uri | http://www.lib.ncsu.edu/resolver/1840.16/1404 | |
| dc.rights | I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. | en_US |
| dc.subject | channel inversion | en_US |
| dc.subject | outage capacity | en_US |
| dc.subject | truncated channel inversion | en_US |
| dc.subject | turbo trellis-coded modulation | en_US |
| dc.subject | MIMO channels | en_US |
| dc.subject | adaptive transmission | en_US |
| dc.title | Adaptive Transmission Using Channel Inversion for Multiple-Antenna Systems | en_US |
Files
Original bundle
1 - 1 of 1
