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oai:www.ideals.illinois.edu:2142/80931 2023-07-11 col_2142_5131 col_2142_8888 com_2142_5130 com_2142_8887 com_2142_234

Veeravalli, Venugopal V. Liang, Yingbin 2015-09-25T20:08:53Z 2015-09-25T20:08:53Z 10000-01-01 2005 2005 In the remainder of the dissertation, the impact of relaying and user cooperation on downlink of wireless networks is investigated. Three two-user relay broadcast channels are studied from an information-theoretic viewpoint. These channels represent fundamental units of downlink systems that exploit relaying and user cooperation. Achievable regions for these channels are derived. Upper bounds on the capacity regions are also derived and are shown to be tighter than the standard cut-set bounds. Furthermore, capacity regions are established for some special classes of channels. The results illustrate that relaying and user cooperation are powerful techniques in improving the capacity of broadcast channels. Made available in DSpace on 2015-09-25T20:08:53Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3199066.pdf: 4573813 bytes, checksum: c2fe8fefad567e443869ae8685a9fa26 (MD5) Previous issue date: 2005 Embargo set by: Seth Robbins for item 82213 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 197 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2005. http://hdl.handle.net/2142/80931 (MiAaPQ)AAI3199066 eng Engineering, Electronics and Electrical Multiuser Communications With Relaying and User Cooperation text Electrical Engineering Electrical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.